{
  "schema": "ab5d-dossier/1",
  "slug": "conundrumer",
  "name": "David Lu",
  "subtitle": "Faceted light, procedural sculpture",
  "lede": "David Lu, working as conundrumer, brings engineering, sound, and visual systems into a compact generative practice. Facets is his AB[500] anchor: a 267 edition Art Blocks Factory project.",
  "url": "https://ab5d.xyz/artists/conundrumer/",
  "bibliography_url": "https://ab5d.xyz/artists/conundrumer/links/",
  "content_url": "https://ab5d.xyz/api/artists/conundrumer.json",
  "updated": "2026-07-08",
  "tier": "compact",
  "editions": 267,
  "collections": 1,
  "otdh": {
    "rank": 177,
    "score": 11724,
    "collector_identities": 172,
    "holder_addresses": 174,
    "projects": 1,
    "current_works": 265,
    "raw_collector_days": 391237,
    "median_project_hold_days": 1577,
    "snapshot_at": "2026-09-14T00:00:00.000Z",
    "methodology_url": "https://ab5d.xyz/artists/otdh/",
    "api_url": "https://ab5d.xyz/api/otdh/conundrumer"
  },
  "identity": {
    "artist": "David Lu",
    "website": "https://conundrumer.com/facets/",
    "based": "Born n/a. Lives and works in New York City",
    "practice": "Software engineering, electronic music, media art, generative visuals, and procedural image systems",
    "now": "Focused across code, sound, geometry, and interactive image making",
    "raster": "https://www.raster.art/artist/conundrumer",
    "otdh": "[11,724 · rank 177 of 308](/artists/otdh/#artist-conundrumer)",
    "holding signal": "172 collector identities · 174 holder addresses · 391,237 raw collector-days · 14 Sep 2026",
    "collector tdh": "[dlTDH](/artists/conundrumer/dltdh/) · dashboard"
  },
  "socials": {
    "website": "https://conundrumer.com/facets/",
    "x": null,
    "instagram": null
  },
  "profile_image_url": null,
  "profile_image_source": null,
  "works": [
    {
      "name": "Facets",
      "editions": 267,
      "supply": 267,
      "artblocks_slug": "facets-by-conundrumer",
      "url": "https://www.artblocks.io/collection/facets-by-conundrumer"
    }
  ],
  "sections": [
    {
      "heading": null,
      "paragraphs": [
        "David Lu is an engineer, musician, and media artist whose public practice moves between software, sound, visualization, and procedural drawing. His own biography describes a Carnegie Mellon background in Electrical and Computer Engineering and Music and Technology, followed by freelance web development and cross-disciplinary projects in systems programming, computer graphics, signal processing, sound design, music production, photography, and performance art. That list is not incidental. It frames Lu's work as a practice of constrained systems rather than a single-medium studio.",
        "His Art Blocks project Facets, released through Art Blocks Factory on 27 January 2022, consists of 267 unique artworks. The collection belongs to a lineage of browser-native generative art that treats the output as both image and instrument. On market and archive pages, the project is consistently identified as Facets by conundrumer, with 267 works on Ethereum and a January 2022 launch. In the AB[500] context, that fixed edition count matters: Facets is a finite, inspectable set, small enough to read as a coherent visual argument."
      ]
    },
    {
      "heading": "Systems before surfaces",
      "paragraphs": [
        "Lu's wider portfolio clarifies the technical basis for Facets. His art archive includes Rationalization, described as a 600,000 pixel tall generative journey from zero to one, and projects spanning Line Rider, spatial sound, chromatic photography, audiovisual composition, and Audioscope. His technology archive presents Line Rider as a game, toy, physics simulator, vector graphics editor, and animation tool, and describes Audioscope as a perceptually meaningful audio visualizer in which \"what you see is what you hear.\"",
        "That phrase is useful for reading Facets. The project does not simply render geometric objects. It asks the viewer to understand a visual system by changing position, scale, and time. Lu's music page identifies Conundrumer as his primary alias for electronic and contemporary music projects, which helps explain the rhythmic and perceptual orientation of his generative work. Geometry in Facets behaves less like static modelling than like an audiovisual score, a set of relations activated by viewpoint."
      ]
    },
    {
      "heading": "Light, sound, and the analytic image",
      "paragraphs": [
        "A core strength of Lu's practice is the translation of one technical domain into another. In his 2016 essay on Audioscope, he explains an audio visualizer built from signal processing, Hilbert transforms, phase shifts, pitch class, hue, and saturation. The accompanying open-source repository describes Audioscope as \"audio visualizers true to the sound,\" implemented in Rust, JavaScript, and GLSL. His GitHub profile further presents a practical engineering footprint around audio visualization, Line Rider, SVG animation, and other code-based systems.",
        "That background makes Facets legible as a work about perception. Its polyhedral language is not merely decorative. It stages the difference between object, projection, and viewer action. The forms can be read as constructivist sculpture, crystalline abstraction, and interface. Their gradients and voids emphasize light as a computational material. The collection's trait structure on OpenSea, including animation, symmetry, palette, primitive, material, and orientation categories, reinforces the sense that Lu is composing with parameters rather than images alone."
      ]
    },
    {
      "heading": "Networked practice",
      "paragraphs": [
        "Lu also appears within broader generative and creative coding communities. Monthly Music Hackathon NYC presented him as a software engineer, electronic musician, and media artist developing generative visuals and expressive interfaces for live, visual electronic music. In an Art Blocks interview, Emily Xie credited David Lu, identified as Conundrumer, with encouraging her to explore NFTs and submit an Art Blocks application, a small but revealing marker of his role within the early Art Blocks social field.",
        "His Line Rider work offers another reference point. Boing Boing described Lu's long-running Line Rider project as an eleven-year course and pointed readers to his extensive process writing. A separate essay on the Line Rider piece Centrism notes Lu, also known as Conundrumer, in relation to synchronization, circles, and generated track geometry. These projects share a concern with controlled motion through drawn systems. In Facets, that concern becomes architectural and luminous: the viewer is not riding through a line, but moving around a generated body.",
        "The compactness of Facets is part of its value. At 267 editions, it is neither a vast generative field nor a single proof-of-concept. It is a focused study of how code can produce sculptural ambiguity, where polygon, gradient, void, and interaction hold equal weight. Vimeo's Audioscope documentation describes Lu's earlier audiovisual premise as \"what you see is what you hear,\" and Facets can be read as a related proposition: what you see depends on how the system lets you look. Secondary market listings such as Verse preserve individual tokens within that wider collection record."
      ]
    }
  ],
  "body_markdown": "David Lu is an engineer, musician, and media artist whose public practice moves between software, sound, visualization, and procedural drawing. His own biography describes a Carnegie Mellon background in Electrical and Computer Engineering and Music and Technology, followed by freelance web development and cross-disciplinary projects in systems programming, computer graphics, signal processing, sound design, music production, photography, and performance art. That list is not incidental. It frames Lu's work as a practice of constrained systems rather than a single-medium studio.\n\nHis Art Blocks project Facets, released through Art Blocks Factory on 27 January 2022, consists of 267 unique artworks. The collection belongs to a lineage of browser-native generative art that treats the output as both image and instrument. On market and archive pages, the project is consistently identified as Facets by conundrumer, with 267 works on Ethereum and a January 2022 launch. In the AB[500] context, that fixed edition count matters: Facets is a finite, inspectable set, small enough to read as a coherent visual argument.\n\n## Systems before surfaces\n\nLu's wider portfolio clarifies the technical basis for Facets. His art archive includes Rationalization, described as a 600,000 pixel tall generative journey from zero to one, and projects spanning Line Rider, spatial sound, chromatic photography, audiovisual composition, and Audioscope. His technology archive presents Line Rider as a game, toy, physics simulator, vector graphics editor, and animation tool, and describes Audioscope as a perceptually meaningful audio visualizer in which \"what you see is what you hear.\"\n\nThat phrase is useful for reading Facets. The project does not simply render geometric objects. It asks the viewer to understand a visual system by changing position, scale, and time. Lu's music page identifies Conundrumer as his primary alias for electronic and contemporary music projects, which helps explain the rhythmic and perceptual orientation of his generative work. Geometry in Facets behaves less like static modelling than like an audiovisual score, a set of relations activated by viewpoint.\n\n## Light, sound, and the analytic image\n\nA core strength of Lu's practice is the translation of one technical domain into another. In his 2016 essay on Audioscope, he explains an audio visualizer built from signal processing, Hilbert transforms, phase shifts, pitch class, hue, and saturation. The accompanying open-source repository describes Audioscope as \"audio visualizers true to the sound,\" implemented in Rust, JavaScript, and GLSL. His GitHub profile further presents a practical engineering footprint around audio visualization, Line Rider, SVG animation, and other code-based systems.\n\nThat background makes Facets legible as a work about perception. Its polyhedral language is not merely decorative. It stages the difference between object, projection, and viewer action. The forms can be read as constructivist sculpture, crystalline abstraction, and interface. Their gradients and voids emphasize light as a computational material. The collection's trait structure on OpenSea, including animation, symmetry, palette, primitive, material, and orientation categories, reinforces the sense that Lu is composing with parameters rather than images alone.\n\n## Networked practice\n\nLu also appears within broader generative and creative coding communities. Monthly Music Hackathon NYC presented him as a software engineer, electronic musician, and media artist developing generative visuals and expressive interfaces for live, visual electronic music. In an Art Blocks interview, Emily Xie credited David Lu, identified as Conundrumer, with encouraging her to explore NFTs and submit an Art Blocks application, a small but revealing marker of his role within the early Art Blocks social field.\n\nHis Line Rider work offers another reference point. Boing Boing described Lu's long-running Line Rider project as an eleven-year course and pointed readers to his extensive process writing. A separate essay on the Line Rider piece Centrism notes Lu, also known as Conundrumer, in relation to synchronization, circles, and generated track geometry. These projects share a concern with controlled motion through drawn systems. In Facets, that concern becomes architectural and luminous: the viewer is not riding through a line, but moving around a generated body.\n\nThe compactness of Facets is part of its value. At 267 editions, it is neither a vast generative field nor a single proof-of-concept. It is a focused study of how code can produce sculptural ambiguity, where polygon, gradient, void, and interaction hold equal weight. Vimeo's Audioscope documentation describes Lu's earlier audiovisual premise as \"what you see is what you hear,\" and Facets can be read as a related proposition: what you see depends on how the system lets you look. Secondary market listings such as Verse preserve individual tokens within that wider collection record.",
  "images": [
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000000.png",
      "title": "Facets #0",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    },
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000053.png",
      "title": "Facets #53",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    },
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000106.png",
      "title": "Facets #106",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    },
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000160.png",
      "title": "Facets #160",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    },
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000213.png",
      "title": "Facets #213",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    },
    {
      "url": "https://media-proxy.artblocks.io/1/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/249000266.png",
      "title": "Facets #266",
      "caption": "2022, Facets",
      "rights": "Not CC0 - Art Blocks render, property of the artist/holders"
    }
  ],
  "references": [
    {
      "n": 1,
      "note": "David Lu's about page states his Carnegie Mellon training and cross-disciplinary project interests.",
      "url": "https://davidlu.me/about/",
      "label": "biography"
    },
    {
      "n": 2,
      "note": "Art Blocks identifies Facets as a David Lu collection of 267 unique artworks released on 27 January 2022.",
      "url": "https://www.artblocks.io/collection/facets-by-conundrumer",
      "label": "collection"
    },
    {
      "n": 3,
      "note": "OpenSea lists Facets by conundrumer as a 267 item Ethereum collection launched in January 2022, with visible trait categories.",
      "url": "https://opensea.io/collection/facets-by-conundrumer",
      "label": "market-archive"
    },
    {
      "n": 4,
      "note": "David Lu's art portfolio lists generative, audiovisual, photographic, Line Rider, and sound-based works.",
      "url": "https://davidlu.me/art/",
      "label": "portfolio"
    },
    {
      "n": 5,
      "note": "David Lu's technology portfolio describes Line Rider and Audioscope as technical and perceptual systems.",
      "url": "https://davidlu.me/tech/",
      "label": "tech-archive"
    },
    {
      "n": 6,
      "note": "David Lu's music page identifies Conundrumer as his primary alias for electronic and contemporary music projects.",
      "url": "https://davidlu.me/music/",
      "label": "music-archive"
    },
    {
      "n": 7,
      "note": "David Lu's Medium essay explains Audioscope as a perceptually meaningful audio visualizer based on signal processing.",
      "url": "https://delu.medium.com/a-perceptually-meaningful-audio-visualizer-ee72051781bc",
      "label": "essay"
    },
    {
      "n": 8,
      "note": "The Audioscope GitHub repository describes the project as audio visualizers true to the sound.",
      "url": "https://github.com/conundrumer/audioscope",
      "label": "source-code"
    },
    {
      "n": 9,
      "note": "David Lu's GitHub profile verifies the conundrumer identity and lists public software repositories.",
      "url": "https://github.com/conundrumer",
      "label": "profile"
    },
    {
      "n": 10,
      "note": "Monthly Music Hackathon NYC presented David Lu as a software engineer, electronic musician, and media artist.",
      "url": "https://monthlymusichackathon.org/post/190173343917/experiential-music-hackathon",
      "label": "event"
    },
    {
      "n": 11,
      "note": "Art Blocks' interview with Emily Xie mentions David Lu, aka Conundrumer, as an early recommender of NFTs and Art Blocks.",
      "url": "https://medium.com/the-link-art-blocks/in-conversation-with-emily-xie-c80f141d4be7",
      "label": "interview"
    },
    {
      "n": 12,
      "note": "Boing Boing covered David Lu's long-running Line Rider project and process writing.",
      "url": "https://boingboing.net/2020/11/27/creator-spent-11-years-developing-epic-line-rider-course.html",
      "label": "press"
    },
    {
      "n": 13,
      "note": "Anton's Medium essay discusses David Lu, Conundrumer, in relation to Line Rider synchronization and generated circles.",
      "url": "https://medium.com/%40anton.nydal/line-rider-centrism-by-hanuman-c4a3f175d190",
      "label": "criticism"
    },
    {
      "n": 14,
      "note": "Vimeo hosts Lu's Audioscope video under Conundrumer and links it to the explanatory Medium essay.",
      "url": "https://vimeo.com/196216785",
      "label": "video"
    },
    {
      "n": 15,
      "note": "Verse preserves an individual Facets token listing and collection metadata for secondary-market context.",
      "url": "https://verse.works/artworks/59e2c3d4-127b-4387-aa8f-71e4e1b0541c/249000195",
      "label": "artwork-listing"
    }
  ],
  "bibliography": [
    {
      "category": "In the AB[500]: Art Blocks",
      "entries": [
        {
          "note": "Art Blocks identifies Facets by David Lu as a 267 artwork Factory collection released in 2022.",
          "url": "https://www.artblocks.io/collection/facets-by-conundrumer",
          "label": "Art Blocks",
          "meta": "collection · 2022"
        }
      ]
    },
    {
      "category": "Interviews",
      "entries": [
        {
          "note": "Emily Xie's Art Blocks interview mentions David Lu, aka Conundrumer, as encouraging her toward NFTs and Art Blocks.",
          "url": "https://medium.com/the-link-art-blocks/in-conversation-with-emily-xie-c80f141d4be7",
          "label": "Art Blocks interview",
          "meta": "interview · 2022"
        }
      ]
    },
    {
      "category": "Press and criticism",
      "entries": [
        {
          "note": "Boing Boing covered Lu's eleven-year Line Rider project and highlighted his process writing.",
          "url": "https://boingboing.net/2020/11/27/creator-spent-11-years-developing-epic-line-rider-course.html",
          "label": "Boing Boing",
          "meta": "press · 2020"
        },
        {
          "note": "Anton's Medium essay discusses Conundrumer in relation to Line Rider, synchronization, and generated circular track geometry.",
          "url": "https://medium.com/%40anton.nydal/line-rider-centrism-by-hanuman-c4a3f175d190",
          "label": "Line Rider criticism",
          "meta": "criticism · 2019"
        }
      ]
    },
    {
      "category": "Museums and institutions",
      "entries": [
        {
          "note": "Monthly Music Hackathon NYC presented David Lu as a software engineer, electronic musician, and media artist working with generative visuals and expressive interfaces.",
          "url": "https://monthlymusichackathon.org/post/190173343917/experiential-music-hackathon",
          "label": "Monthly Music Hackathon NYC",
          "meta": "event · 2020"
        }
      ]
    },
    {
      "category": "Galleries and exhibitions",
      "entries": [
        {
          "note": "David Lu's art portfolio records Selee Music Video as shown with Line Rider at Match Gallery, Ljubljana, alongside other audiovisual projects.",
          "url": "https://davidlu.me/art/",
          "label": "artist portfolio",
          "meta": "exhibition-archive · 2019"
        }
      ]
    },
    {
      "category": "Essays, talks and podcasts",
      "entries": [
        {
          "note": "Lu's Audioscope essay explains a signal-processing approach to perceptually meaningful audio visualization.",
          "url": "https://delu.medium.com/a-perceptually-meaningful-audio-visualizer-ee72051781bc",
          "label": "Audioscope essay",
          "meta": "essay · 2016"
        },
        {
          "note": "Lu's technology archive describes Line Rider, Audioscope, Tone Circle, Chroma Tone, SoundCloud Crowdsound, and Spectroscanner.",
          "url": "https://davidlu.me/tech/",
          "label": "technology archive",
          "meta": "archive · 2019"
        },
        {
          "note": "Lu's music page identifies Conundrumer as his primary alias for electronic and contemporary music projects.",
          "url": "https://davidlu.me/music/",
          "label": "music archive",
          "meta": "archive · 2016"
        }
      ]
    },
    {
      "category": "Auctions and catalogues",
      "entries": [
        {
          "note": "OpenSea lists Facets by conundrumer as a 267 item Ethereum collection launched in January 2022.",
          "url": "https://opensea.io/collection/facets-by-conundrumer",
          "label": "OpenSea",
          "meta": "market · 2022"
        },
        {
          "note": "Verse preserves an individual Facets artwork page with collection and ownership metadata.",
          "url": "https://verse.works/artworks/59e2c3d4-127b-4387-aa8f-71e4e1b0541c/249000195",
          "label": "Verse",
          "meta": "artwork-listing · 2022"
        }
      ]
    },
    {
      "category": "Profiles and archives",
      "entries": [
        {
          "note": "David Lu's about page documents his Carnegie Mellon studies and cross-disciplinary technical practice.",
          "url": "https://davidlu.me/about/",
          "label": "artist bio",
          "meta": "profile · 2015"
        },
        {
          "note": "David Lu's GitHub profile verifies the conundrumer identity and public software archive.",
          "url": "https://github.com/conundrumer",
          "label": "GitHub profile",
          "meta": "profile · 2026"
        },
        {
          "note": "The Audioscope GitHub repository archives Lu's open-source audio visualizer.",
          "url": "https://github.com/conundrumer/audioscope",
          "label": "GitHub repository",
          "meta": "code-archive · 2016"
        }
      ]
    },
    {
      "category": "Video",
      "entries": [
        {
          "note": "Vimeo hosts Lu's Audioscope video under Conundrumer, with the caption \"What you see is what you hear.\"",
          "url": "https://vimeo.com/196216785",
          "label": "Audioscope video",
          "meta": "video · 2016"
        }
      ]
    }
  ],
  "provenance": {
    "schema": "ab5d-provenance/1",
    "contributor": "ab500dao.eth",
    "agent": "GPT-5.5 Thinking",
    "model": "GPT-5.5 Thinking",
    "harness": "AB5D structured pipeline",
    "autonomy": "supervised",
    "tokens": {
      "input": 3100,
      "output": 2300,
      "estimated": true
    },
    "cost_usd": null,
    "links_verified": 15,
    "date": "2026-07-08",
    "note": "Structured return rendered by scripts/render_dossier.py."
  },
  "license": "https://ab5d.xyz/license/",
  "license_note": "Dossier prose is CC0. Embedded Art Blocks renders are not: they remain the property of their respective artists and holders.",
  "attribution": {
    "name": "AB[500]",
    "url": "https://ab5d.xyz/artists/conundrumer/",
    "cite": "AB5D, \"David Lu\", AB[500] artist dossier, ab5d.xyz, 2026",
    "required": false,
    "requested": true,
    "note": "Prose is CC0; a credit and link back to ab5d.xyz is appreciated, not required."
  },
  "generated": "2026-09-14T12:58:26"
}