Paramecircle

The work and its context

Paramecircle is a 76-edition generative art series by Alexander Reben, working under his long-running handle artBoffin, released on Art Blocks as a Factory project on Ethereum mainnet, contract 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, project ID 195.¹ Each output is a single great circle, a cell, packed with smaller circles: the registry description says the series "explores circle packing inspired by the biology of single-celled organisms", with internal structures that "interact with each other in differing ways", and the name itself folds a paramecium into a parametric circle.¹ Some outputs ring the cell with concentric waves, some fill it with dots, some with squares, some with translucent blobs that read as organelles seen through a microscope.²³

Reben is an American artist and roboticist based in the San Francisco Bay Area, trained in social robotics at the MIT Media Lab, whose practice probes what his dossier calls "the inherently human nature of the artificial" across robots, AI systems and generative code.⁴ He is a leading figure at the intersection of art and technology: OpenAI's first artist in residence in 2023, with the solo museum retrospective "AI Am I?" at the Crocker Art Museum from October 2023 through April 2024, and exhibitions at Ars Electronica, MAK, the Vitra Design Museum and the Vienna Biennale.⁴⁵⁶ Two of his projects sit in AB[500]: SpiroFlakes (1,024 editions) and Paramecircle, its compact 76-edition companion.⁴

The series runs as a self-contained HTML document with no library at all, script type custom@na, at a square aspect ratio with zero external assets, and it carries the strictest artwork licence in this batch so far, CC BY-NC-ND 4.0.¹

Conception and development

The conception is a biological metaphor executed with a packing algorithm. The description names the two poles directly: circle packing as the method, single-celled organisms as the image, and it promises that "64 color pallets and a monochrome mode provide that visual contrast while the other internal algorithms determine how objects are packed."¹ The script delivers exactly that inventory: sixty-four hand-listed palettes, a fifty-percent monochrome roll, and six distinct rendering modes that reinterpret the same packed circles as rings, nested circles, squares, dotted interiors, linked bodies or translucent tissue.² Read against the metaphor, the modes become cell biology: the great circle is the cell body, the packed circles are nuclei and vacuoles, and the rare connecting strokes, drawn between consecutive circles on a ten-percent roll, sketch something like cilia.²

The AB5D dossier places Paramecircle beside SpiroFlakes as a study in opposites: where SpiroFlakes "spreads outward in radiant complexity, Paramecircle draws the eye inward", its compositions recalling "both scientific illustration and Op Art", with the tighter edition count "signalling a shift toward density and concentration."⁴ That reading fits the object's scale: at 76 editions it is a small, deliberate run from an artist whose other AB[500] project is thirteen times larger.⁴

No Paramecircle-specific interview was located; the registry interview field is empty.¹ The conception account therefore rests on the description, the dossier, the artist's own site and the script, which agree with one another to an unusual degree: every number in the description, the palette count, the monochrome mode, the packing algorithms, verifies against the code.¹²⁴⁷

How the work was constructed

The full artist script was retrieved from the official indexed project record at the Art Blocks mainnet GraphQL endpoint, filtered by the exact slug paramecircle-by-alexander-reben-artboffin and corroborated against contract 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270 and project ID 195. The retrieved script is 4,775 bytes with SHA-256 digest c4b8b8f41cb0bcee484af19bd2e92dfd345fc38a6b9632f60f2e6009bbaacf83 (recorded in evidence.json; the script itself is not redistributed). The indexed runtime is custom@na: a complete HTML document with a single canvas and inline JavaScript, no library, no external assets.¹²

The script runs two random systems side by side. Structural choices are read straight out of the hash: a helper slices hexadecimal characters at fixed positions, so the monochrome roll, the four palette indices, the render mode and the circle-size divisor each trace to specific digits of the chain hash. Cosmetic choices come from a small custom generator seeded with the hash's first eight hexadecimal characters, built on the Knuth multiplicative constant and warmed up sixteen times, which picks colors within palettes and jitters positions and radii.² Sixty-four four-color palettes are listed by hand, and the first entry, white-black-white-black, doubles as the monochrome mode: when the monochrome roll succeeds, all four palette indices are forced to zero.²

The drawing proceeds in stages. The background fills from the background palette; a circle of radius just under half the canvas, the cell, fills from the cell palette; then a rejection-sampling loop packs non-overlapping circles into a disk, up to a million placements or a hundred thousand failures, with radii governed by a hash-chosen divisor.² Finally one of six render modes, chosen by a single hash digit, redraws the packing: concentric rings sweeping inward (one case in sixteen), each packed circle rebuilt as nested shrinking circles (three in sixteen), concentric squares (two in sixteen), filled circles with optional outlines and those rare connecting strokes (four in sixteen), half-radius dots (three in sixteen), or translucent overlapping blobs at fifty percent alpha and one-and-a-half times radius (three in sixteen).² Rendering is one-shot canvas 2D: no animation, no interaction handlers, no audio code, and no published feature traits.² The live renderer confirmed the static character for token 195000022: the reported hash matched the chain record, two screenshots three seconds apart were byte-identical, and no audio elements exist in the page.⁸ Because the structural choices are plain hash slices, this package could go further than visual reading: the mode and palette indices of all five sampled tokens were recomputed from their chain hashes, and every one matches its rendered image.²⁹³

The mint

The dated record, observed in the current Art Blocks index on September 18, 2026, spans just under six months.¹⁹ Edition 0 (token 195000000) was minted on October 22, 2021 at 11:33:16 UTC, eight days before the project was activated on October 30 at 01:48:01 UTC, a pre-activation artist mint. The registry's sale-start timestamp reads November 4, 2021 at 16:00:00 UTC, the official collection page carries "Released Nov 4, 2021, 4:00 PM UTC", and the second token was minted eighty-one seconds later at 16:01:21 UTC, the fastest first public mint in this batch.¹¹⁰⁹

Given the tiny supply, the sale was bound to be short by count if not by calendar: 42 of the 76 editions were minted in November 2021, 16 in December, then a slow tail of 6 in January 2022, 5 in February, none in March, and a final 6 in April closed the series on April 27, 2022 at 21:49:14 UTC.⁹ The minted count equals the maximum of 76, and the project is marked complete, locked and active, with the paused flag false.¹ The currently indexed price is 0.1 ETH per token; no dated 2021 source inspected here states the original mint price, so that figure is reported as the present registry value and the launch price remains unverified.¹ The AB5D collection's edition 22 was minted two days into the public sale, on November 6, 2021.⁹¹¹

Copyright and licensing

The project registry reports the artwork licence label "CC BY-NC-ND 4.0" for Paramecircle, with no linked terms URL in the record.¹ This essay therefore categorizes the artwork licence as creative-commons, variant CC BY-NC-ND 4.0, the most restrictive licence encountered in this batch.¹ The CC BY-NC-ND 4.0 deed grants only the freedom to share, copy and redistribute the material in any medium or format, under three conditions: attribution, giving appropriate credit with a link to the licence and an indication of changes; NonCommercial, no use for commercial purposes; and NoDerivatives, if you remix, transform or build upon the material, you may not distribute the modified material. The deed also forbids applying additional legal or technological restrictions.¹²

The contrast with the CC BY-NC 4.0 licence carried by most peers in this batch is substantive: there is no Adapt freedom here, so a collector or curator may show the work but may not publish remixes of it, a notable choice for a project whose own description celebrates internal variation.¹¹² The script carries no licence header or copyright comment of its own, so no code licence is reported for this package; the absence is recorded rather than resolved.² The work declares no third-party runtime dependency at all: the registry lists zero external assets and the script is a self-contained HTML document, so there is no library licence in the chain either.¹² Owning a Paramecircle token conveys no copyright by itself, and no conflicting licence statements were found in the inspected sources. Images in this essay are referenced through canonical Art Blocks token pages and media rather than republished.⁹

Close reading of examples

Five outputs were inspected directly through their platform media, and for this series the mode and palette of each was also recomputed from its chain hash; every recomputation matched the rendered image.²⁹³

Edition 0 (token 195000000, minted October 22, 2021, the pre-activation artist mint) lands the translucent-blob mode: on a deep navy ground, a cyan cell fills the frame, packed with overlapping pale-blue and pink circles at half alpha, so the whole reads as tissue under a microscope, organelles glowing through one another. The recomputation confirms mode thirteen of sixteen with the cell drawn from palette fifty-seven and the blobs from palette sixty-one.²⁹³

Edition 1 (token 195000001, the first public mint, November 4, 2021, eighty-one seconds after the sale opened) is the square mode: a pink ground, a pale-mint cell, and hundreds of teal, pink and white squares where the packing placed circles, the organic metaphor traded for confetti.²⁹³ Edition 20 (token 195000020) shows the dot mode on a teal cell: each packed circle redrawn at half radius in light blue, white, pink and lavender, a star-field reading of the same disk.²⁹³

Edition 10 (token 195000010) rewards a long look as the sample's monochrome roll, and the code shows what that means precisely: all four palette indices forced to zero, the white-black-white-black entry, with the translucent-blob mode on top. The result is a white ground crowded with overlapping gray circles, X-ray-like, the packing structure completely exposed once color is removed. That a fifty-percent roll produces the sample's starkest image says something about how much of this series' appeal lives in the palettes.²⁹³

Edition 22 (token 195000022, minted November 6, 2021), the AB5D-held example, is the dot mode again but at the opposite scale: a dark slate ground, a mint cell, and white and pink circles in two size classes, large bodies and fine dust, recomputed as mode eleven with palette sixty-three supplying the dots.²⁹³ Its inspection extended to the live renderer, where the hash matched the chain record and the work's static, single-frame character was confirmed with byte-identical screenshots three seconds apart.⁸

Significance and limitations

Paramecircle is a small masterclass in legible generative design: one metaphor, one packing loop, six render modes, sixty-four palettes, and a description that tells the collector exactly what the code contains, all inside a five-kilobyte HTML file that needs no library.¹² It also documents a rights posture that differs from its peers: the NoDerivatives licence forbids published remixes of the artwork, a deliberate tightening on a project whose own premise is variation.¹¹² Within Reben's AB[500] pair it is the inward-looking companion to SpiroFlakes, and within this batch it is the package where hash-to-image recomputation was not just possible but trivial, because the artist reads his structural parameters straight out of the hash digits.²⁴

Unresolved research questions, flagged for review:

• The original mint price at the 2021 sale is not established by any dated 2021 source inspected here; only the current registry value of 0.1 ETH is recorded.¹
• No Paramecircle-specific artist interview was located; the registry interview field is empty.¹
• The April 2022 completion (6 mints after a mintless March) has no documented trigger in inspected sources.⁹
• An Artnet News feature on the artist's Crocker retrospective was located but blocked to automated access (HTTP 403); it is recorded as an uninspected lead, not cited.⁴
• The description's phrase "64 color pallets" (spelling as in the record) was verified against the script: exactly 64 palettes are listed.¹²