{
  "sources": [
    {
      "id": "S01",
      "title": "Art Blocks public GraphQL index, `projects_metadata` for project 218 (description, sales notes, licence and the full program) and `tokens_metadata` for all 80 tokens. Retrieved 2026-09-20 via",
      "url": "https://artblocks-mainnet.hasura.app/v1/graphql",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks public GraphQL index, `projects_metadata` for project 218 (description, sales notes, licence and the full program) and `tokens_metadata` for all 80 tokens. Retrieved 2026-09-20 via https://artblocks-mainnet.hasura.app/v1/graphql. Collection page: https://www.artblocks.io/collection/squares-and-triangles-by-maksim-hapeyenka"
      ]
    },
    {
      "id": "S05",
      "title": "Art Blocks, artist profile, Maksim Hapeyenka. Read 20 September 2026.",
      "url": "https://www.artblocks.io/artists/maksim-hapeyenka",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, artist profile, Maksim Hapeyenka. Read 20 September 2026. https://www.artblocks.io/artists/maksim-hapeyenka"
      ]
    },
    {
      "id": "S06",
      "title": "Etherscan, address `0x9c718ebbf5c709667cd3bc24d957d8f898131dd2` (birth-ent.eth), the project's artist address. Read 21 September 2026 by automated extraction.",
      "url": "https://etherscan.io/address/0x9c718ebbf5c709667cd3bc24d957d8f898131dd2",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Etherscan, address `0x9c718ebbf5c709667cd3bc24d957d8f898131dd2` (birth-ent.eth), the project's artist address. Read 21 September 2026 by automated extraction. https://etherscan.io/address/0x9c718ebbf5c709667cd3bc24d957d8f898131dd2"
      ]
    },
    {
      "id": "S07",
      "title": "Maksim Hapeyenka, \"'Squares and Triangles' prehistory\", Medium, 24 September 2021. Read by automated extraction.",
      "url": "https://medium.com/@maksim_hapeyenka/squares-and-triangles-prehistory-da4423b9f9c8",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Maksim Hapeyenka, \"'Squares and Triangles' prehistory\", Medium, 24 September 2021. Read by automated extraction. https://medium.com/@maksim_hapeyenka/squares-and-triangles-prehistory-da4423b9f9c8"
      ]
    },
    {
      "id": "S08",
      "title": "Maksim Hapeyenka, \"'Squares and Triangles': everything you need to know\", Medium, 24 September 2021. Read by automated extraction.",
      "url": "https://medium.com/@maksim_hapeyenka/squares-and-triangles-everything-you-need-to-know-ed9ea913474e",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Maksim Hapeyenka, \"'Squares and Triangles': everything you need to know\", Medium, 24 September 2021. Read by automated extraction. https://medium.com/@maksim_hapeyenka/squares-and-triangles-everything-you-need-to-know-ed9ea913474e"
      ]
    },
    {
      "id": "S09",
      "title": "Maksim Hapeyenka (maxgmer), GitHub profile and the \"visual_experiments\" repository (Processing 3, MIT licence). Read 21 September 2026.",
      "url": "https://github.com/maxgmer",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Maksim Hapeyenka (maxgmer), GitHub profile and the \"visual_experiments\" repository (Processing 3, MIT licence). Read 21 September 2026. https://github.com/maxgmer and https://github.com/maxgmer/visual_experiments"
      ]
    },
    {
      "id": "S11",
      "title": "Maksim Hapeyenka, \"Birth: upcoming generative art project on Bitcoin\", Medium, 22 December 2022. Read by automated extraction.",
      "url": "https://medium.com/@maksim_hapeyenka/birth-upcoming-generative-art-project-on-ethereum-a21cc281971f",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Maksim Hapeyenka, \"Birth: upcoming generative art project on Bitcoin\", Medium, 22 December 2022. Read by automated extraction. https://medium.com/@maksim_hapeyenka/birth-upcoming-generative-art-project-on-ethereum-a21cc281971f"
      ]
    },
    {
      "id": "S12",
      "title": "Birth, \"on-chain art on Bitcoin\", project site. Read 21 September 2026.",
      "url": "https://birth.ink/",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Birth, \"on-chain art on Bitcoin\", project site. Read 21 September 2026. https://birth.ink/"
      ]
    },
    {
      "id": "S17",
      "title": "Art Blocks, token page for Squares and Triangles #64, showing AB5D as owner. Read 20 September 2026.",
      "url": "https://www.artblocks.io/marketplace/asset/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/218000064",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, token page for Squares and Triangles #64, showing AB5D as owner. Read 20 September 2026. https://www.artblocks.io/marketplace/asset/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/218000064"
      ]
    },
    {
      "id": "S10",
      "title": "\"Squares and Triangles\", YouTube playlist of five tier-preview videos, channel Maksim Hapeyenka (title and channel confirmed via YouTube oEmbed, 21 September 2026; videos not watched).",
      "url": "https://www.youtube.com/playlist?list=PLwCtmsSTI3-F7EMNOPJz8pZs8pUT0PNpC",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "\"Squares and Triangles\", YouTube playlist of five tier-preview videos, channel Maksim Hapeyenka (title and channel confirmed via YouTube oEmbed, 21 September 2026; videos not watched). https://www.youtube.com/playlist?list=PLwCtmsSTI3-F7EMNOPJz8pZs8pUT0PNpC"
      ]
    },
    {
      "id": "S04",
      "title": "AB5D, \"Squares and Triangles by Maksim Hapeyenka\", earlier series essay. Read 20 September 2026.",
      "url": "https://ab5d.xyz/series/squares-and-triangles-by-maksim-hapeyenka/",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "AB5D, \"Squares and Triangles by Maksim Hapeyenka\", earlier series essay. Read 20 September 2026. https://ab5d.xyz/series/squares-and-triangles-by-maksim-hapeyenka/"
      ]
    },
    {
      "id": "S13",
      "title": "OpenSea, \"Squares and Triangles by Maksim Hapeyenka\" collection activity feed. Read 21 September 2026 by automated extraction; prices shown in US dollars, undated.",
      "url": "https://opensea.io/collection/squares-and-triangles-by-maksim-hapeyenka/activity",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "OpenSea, \"Squares and Triangles by Maksim Hapeyenka\" collection activity feed. Read 21 September 2026 by automated extraction; prices shown in US dollars, undated. https://opensea.io/collection/squares-and-triangles-by-maksim-hapeyenka/activity"
      ]
    },
    {
      "id": "S14",
      "title": "Art Blocks, \"Squares and Triangles by Maksim Hapeyenka\" marketplace collection page (five listings from 0.6 ETH). Read 21 September 2026.",
      "url": "https://www.artblocks.io/marketplace/collections/squares-and-triangles-by-maksim-hapeyenka",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, \"Squares and Triangles by Maksim Hapeyenka\" marketplace collection page (five listings from 0.6 ETH). Read 21 September 2026. https://www.artblocks.io/marketplace/collections/squares-and-triangles-by-maksim-hapeyenka"
      ]
    },
    {
      "id": "S15",
      "title": "OpenSea, \"Squares and Triangles #17\" item page (owner artbydots). Read 21 September 2026 by automated extraction.",
      "url": "https://opensea.io/assets/ethereum/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/218000017",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "OpenSea, \"Squares and Triangles #17\" item page (owner artbydots). Read 21 September 2026 by automated extraction. https://opensea.io/assets/ethereum/0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270/218000017"
      ]
    },
    {
      "id": "S16",
      "title": "Art Blocks, token page for Squares and Triangles #72 (owner drCCO) and profile of `0xd4f11b5f55c20fc71c4d533d1d4c1106747a9772`. Read 21 September 2026.",
      "url": "https://www.artblocks.io/token/218000072",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, token page for Squares and Triangles #72 (owner drCCO) and profile of `0xd4f11b5f55c20fc71c4d533d1d4c1106747a9772`. Read 21 September 2026. https://www.artblocks.io/token/218000072 and https://www.artblocks.io/profile/0xd4f11b5f55c20fc71c4d533d1d4c1106747a9772"
      ]
    },
    {
      "id": "S02",
      "title": "Art Blocks, \"Factory\" discover page. Read 20 September 2026.",
      "url": "https://www.artblocks.io/discover/factory",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, \"Factory\" discover page. Read 20 September 2026. https://www.artblocks.io/discover/factory"
      ]
    },
    {
      "id": "S03",
      "title": "Art Blocks, \"Art Blocks 500: The Complete Collection\". Read 20 September 2026.",
      "url": "https://www.artblocks.io/articles/art-blocks-500-complete-collection",
      "author": null,
      "publisher": null,
      "publicationDate": null,
      "accessedAt": "2026-09-20",
      "accessOutcome": "submitted",
      "accessMethod": "Supplied manuscript; sources not independently reinspected during import.",
      "archiveUrl": null,
      "evidenceLocators": [
        "Art Blocks, \"Art Blocks 500: The Complete Collection\". Read 20 September 2026. https://www.artblocks.io/articles/art-blocks-500-complete-collection"
      ]
    }
  ]
}