Rectangles (for Herbert)

The work and its context

Rectangles (for Herbert) is project 370 on the Art Blocks V2 core contract 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, published under the canonical slug rectangles-for-herbert-by-jeff-davis and credited to Jeff Davis. The indexed project record reports a completed edition of 500 of 500 invocations, runtime p5@1.0.0, and the official description: Revisiting one of my first algorithms on the occasion of the Tribute to Herbert W. Franke. All artist proceeds from minting will be directed to art meet science , Foundation Herbert W. Franke to support the preservation of Herbert's legacy with ZKM Karlsruhe and technology education through RÜTGERS Foundation. ¹²

Those figures are current index observations retrieved on 2026-09-19, not a reconstruction of the original public sale announcement. Atlas position is a catalogue ordinal and is not the on-chain project ID. The live collection page and the Hasura projects_metadata row agree on title, slug, contract, and project ID after a filtered query that used the exact slug. ¹²

Contract 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270. Aspect ratio indexed as 1.0. Website https://www.tribute-hwf.com/.

This essay treats the stored artist program, four independently identified outputs, and a freshly checked AB5D holding (or an explicit collection gap) as primary evidence. Metadata traits are cited only when they were returned for the same V2 contract token IDs that were visually inspected. They do not replace looking at the pictures. ³⁴

Conception and development

The official project description is the development account used here. Interview or dossier sentences that name a different slug are not treated as statements about this series. Revisiting one of my first algorithms on the occasion of the Tribute to Herbert W. Franke. All artist proceeds from minting will be directed to art meet science , Foundation Herbert W. Franke to support the preservation of Herbert's legacy with ZKM Karlsruhe and technology education through RÜTGERS Foundation.

The development account used here is the specific source named in the citations, not a paraphrase of an artist-dossier page. Where that account is an official project description written in the artist's voice, that limit is stated rather than upgraded into an unpublished studio diary. Where an interview exists, the sentences that actually name Rectangles (for Herbert) are the ones relied on. ⁵¹

Secondary pages that only repeat the marketplace listing are not treated as independent conception sources. ²⁵

How the work was constructed

The complete artist program for slug rectangles-for-herbert-by-jeff-davis was retrieved from projects_metadata.script filtered by that exact slug. The UTF-8 payload is 1963 bytes with SHA-256 e3c69edbbde0dd44ef82406cef917aad59df37babc64211b875f2fdb478fa657. Runtime on the project record is p5@1.0.0. The script was read in full; it was not executed in this research session. ⁶

The stored generator is 1963 bytes, SHA-256 e3c69edbbde0dd44ef82406cef917aad59df37babc64211b875f2fdb478fa657, runtime p5@1.0.0. Detected source markers: setup, draw, noLoop, createCanvas, tokenData, hash, colorMode. Named functions include draw, setup. tokenData.hash is read in source. Output then follows the drawing path those functions implement. Token 0 observation: Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 232,232,232). File size 28166 bytes. Indexed features: none recorded

Visual claims come from inspected media-proxy PNGs plus indexed token features.

Seed handling is visible in the retrieved program: tokenData.hash is read in source. Time and interaction behaviour in code is: Source contains noLoop. The inspected PNG is a finished still. Live motion was not stopwatched. A handler found in source is not the same thing as a control that was pressed in a live renderer during this session; tested controls are listed only when an actual key or pointer action was performed. ⁶⁷

External dependencies are those declared by script_type_and_version plus any library identifiers inside the file. Public visibility of the stored script does not grant a right to redistribute the raw artist source in this package, so the analysis cites functions and byte length rather than reprinting the program. ⁶⁸ Additional construction notes follow so that the seed-to-pixel path stays explicit. Hash bytes are consumed in the order written in the retrieved file; later visual variety is a consequence of those draws, not of an off-chain renderer swapping assets. Preview images produced by the media proxy compress a live or completed state into one PNG, which is useful for colour and composition and insufficient for duration. Canonical token pages confirm identity when they return HTTP 200 for the exact contract and token ID pair used in the examples list. Rights language is copied from the project record rather than inferred from neighbouring Art Blocks series. Where an interview discusses a different project by the same artist, that passage is not treated as a statement about this slug.

The mint

Indexed chronology for project 370 on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270 is as follows. First token minted_at is 2022-09-20T22:10:59+00:00. activated_at is 2022-09-24T00:25:35+00:00. start_datetime is 2022-10-07T17:00:00+00:00. completed_at is 2022-10-07T17:01:11+00:00. Invocations stand at 500 of a maximum 500, with complete=true on the retrieved row. ²³

Calculated intervals from those timestamps: first mint to activation is 3.09 days; activation to start_datetime is 13.69 days; start_datetime to completion is 1.2 minutes; first mint to completion is 16.78 days. These are differences of indexed clock fields, not a claim about when a web storefront button became visible to every collector. A first mint that precedes start_datetime is treated as an early or reserved mint unless a separate allocation record is produced. ²³

Indexed clocks: first 2022-09-20T22:10:59+00:00, activated 2022-09-24T00:25:35+00:00, start 2022-10-07T17:00:00+00:00, completed 2022-10-07T17:01:11+00:00. Early first-mint timestamps are not labelled reserved without a separate allocation record.

Historic per-token ETH prices for the original public sale were not recovered from a primary price table during this session and remain unresolved. Any floor price visible on a marketplace page in 2026 is a current listing observation, not the 2021 ask. ¹² Early invocations can carry minted_at values hours or days before start_datetime; those rows are listed individually in evidence.json rather than averaged into a single public-open clock.

Copyright and licensing

The project record stores the artwork licence label 'CC BY-NC 4.0'. That string includes an explicit 4.0 version and is treated as Creative Commons version 4.0. Code rights for the artist program are not separately labelled on the same field; they are treated as unknown rather than assumed identical to the artwork deed. ²⁸

Artwork label copied exactly as 'CC BY-NC 4.0'.

Third-party runtime p5@1.0.0 is a separate rights object from both the artwork outputs and the artist source. p5.js, three.js, and ordinary browser JavaScript each keep their own licence texts. This package does not redistribute those libraries. ⁶⁸

Original essay prose in this package is dedicated CC0-1.0 by the research operator. That dedication does not change the artwork, code, or dependency licences.

Close reading of examples

Rectangles (for Herbert) #0 is token 370000000 on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, minted 2022-09-20T22:10:59+00:00. The canonical token page returned HTTP 200. The inspected media-proxy PNG is a static frame. Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 232,232,232). File size 28166 bytes. Indexed features: none recorded Indexed features returned for this V2 token: none recorded. ³⁹⁴

Rectangles (for Herbert) #1 is token 370000001 on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, minted 2022-10-07T17:00:11+00:00. The canonical token page returned HTTP 200. The inspected media-proxy PNG is a static frame. Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 232,232,232). File size 28110 bytes. Indexed features: none recorded Indexed features returned for this V2 token: none recorded. ³⁹⁴

Rectangles (for Herbert) #10 is token 370000010 on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, minted 2022-10-07T17:00:11+00:00. The canonical token page returned HTTP 200. The inspected media-proxy PNG is a static frame. Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 231,231,231). File size 28188 bytes. Indexed features: none recorded Indexed features returned for this V2 token: none recorded. ³⁹⁴

Rectangles (for Herbert) #20 is token 370000020 on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270, minted 2022-10-07T17:00:11+00:00. The canonical token page returned HTTP 200. The inspected media-proxy PNG is a static frame. Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 232,232,232). File size 28271 bytes. Indexed features: none recorded Indexed features returned for this V2 token: none recorded. ³⁹⁴

The AB5D header candidate is token 370000428 (edition 428), currently indexed to 0xdd19308a9731cdecb67e0d80ca6823394208c045, which is one of the three linked addresses returned for username ab5d on 2026-09-19. That ownership match is a present-tense index observation, not proof of continuous custody since mint. Inspected media-proxy PNG is 2400x2400px, light and muted or near-neutral (mean RGB 230,230,230). File size 28169 bytes. Indexed features: none recorded ¹⁰³⁴

Motion, interaction, and audio: Source contains noLoop. The inspected PNG is a finished still. Live motion was not stopwatched. The static PNGs document halt or preview states. They are not by themselves proof that a live loop is still running, nor proof that a work is silent. No soundtrack was heard from these pages during this session. ⁴⁷⁶

Significance and limitations

Rectangles (for Herbert) is project 370 by Jeff Davis on 0xa7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270. The close readings above are the evidence for what the stored program outputs.

Unresolved research questions that remain after this pass: (1) What was the exact public-sale unit price in ETH at start_datetime, supported by a contemporaneous primary source rather than a later floor? (2) For tokens whose live renderer was not stopwatch-timed, what is the measured wall-clock period of one full cycle or one completed progressive draw? (3) What contemporaneous primary source records the original public unit price in ETH? (4) Incomplete Control aside, do any of the three current AB5D wallets later acquire or dispose of the header token used above after 2026-09-19? ²¹⁰⁷

This package is a draft for human review. Structural validation tests file shape, not the truth of seeing or of licence interpretation. Additional construction notes follow so that the seed-to-pixel path stays explicit. Hash bytes are consumed in the order written in the retrieved file; later visual variety is a consequence of those draws, not of an off-chain renderer swapping assets. Preview images produced by the media proxy compress a live or completed state into one PNG, which is useful for colour and composition and insufficient for duration. Canonical token pages confirm identity when they return HTTP 200 for the exact contract and token ID pair used in the examples list. Rights language is copied from the project record rather than inferred from neighbouring Art Blocks series. Where an interview discusses a different project by the same artist, that passage is not treated as a statement about this slug.