{
  "sources": [
    {
      "id": "S01",
      "author": "Art Blocks",
      "title": "PRELUDES by Trevor Paglen collection page",
      "url": "https://www.artblocks.io/collection/preludes-by-trevor-paglen",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "collection header and description for slug preludes-by-trevor-paglen",
        "edition size and project identity projectId 5"
      ]
    },
    {
      "id": "S02",
      "author": "Art Blocks Hasura index",
      "title": "projects_metadata record for preludes-by-trevor-paglen",
      "url": "https://artblocks-mainnet.hasura.app/v1/graphql",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "graphql-post",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "query projects_metadata where slug=_eq preludes-by-trevor-paglen; fields project_id,license,invocations,max_invocations,first_token_minted_at,activated_at,start_datetime,completed_at,script_type_and_version,description,website",
        "returned project_id 5 contract_address 0x145789247973c5d612bf121e9e4eef84b63eb707"
      ]
    },
    {
      "id": "S03",
      "author": "Trevor Paglen",
      "title": "PRELUDES on-chain artist program",
      "url": "https://artblocks-mainnet.hasura.app/v1/graphql",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "graphql-post",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "projects_metadata.script for slug preludes-by-trevor-paglen; SHA-256 66f812f4bb4d5a702c0975ef67cb2f345b62c74d2788e39c1b9266a322afce3f; 32352 UTF-8 bytes",
        "full script 32352 bytes SHA-256 66f812f4bb4d5a702c0975ef67cb2f345b62c74d2788e39c1b9266a322afce3f"
      ]
    },
    {
      "id": "S04",
      "author": "Art Blocks Hasura index",
      "title": "tokens_metadata for sampled PRELUDES token IDs",
      "url": "https://artblocks-mainnet.hasura.app/v1/graphql",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "graphql-post",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "tokens_metadata where token_id in sampled set and contract_address = 0x145789247973c5d612bf121e9e4eef84b63eb707",
        "returned token_id, invocation, minted_at, owner_address, hash, features"
      ]
    },
    {
      "id": "S05",
      "author": "Art Blocks",
      "title": "Canonical token pages for sampled PRELUDES outputs",
      "url": "https://www.artblocks.io/token/1/0x145789247973c5d612bf121e9e4eef84b63eb707/5000000",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-head",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "HEAD https://www.artblocks.io/token/1/0x145789247973c5d612bf121e9e4eef84b63eb707/5000000 status 200",
        "matching HEAD 200 on the other three sampled canonical token URLs"
      ]
    },
    {
      "id": "S06",
      "author": "Creative Commons",
      "title": "Reported artwork licence label CC BY-NC 4.0",
      "url": "https://creativecommons.org/licenses/by-nc/4.0/",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "project license field exactly 'CC BY-NC 4.0'",
        "deed or project page text as cited; unversioned labels are not rewritten as 4.0"
      ]
    },
    {
      "id": "S07",
      "author": "Trevor Paglen",
      "title": "PRELUDES official description",
      "url": "https://www.pacegallery.com/journal/trevor-paglen-preludes/",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "official indexed description used as the development account"
      ]
    },
    {
      "id": "S08",
      "author": "Art Blocks",
      "title": "AB5D linked wallet set and profile index",
      "url": "https://www.artblocks.io/profile/ab5d",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get-and-graphql",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "GraphQL user_profiles where username=_eq ab5d; linked_accounts.public_address returned three addresses",
        "profile page HTTP 200 also listing 0xdd19308a9731cdecb67e0d80ca6823394208c045"
      ]
    },
    {
      "id": "S09",
      "author": "Art Blocks media proxy",
      "title": "Static PNG renders of sampled PRELUDES tokens",
      "url": "https://media-proxy.artblocks.io/0x145789247973c5d612bf121e9e4eef84b63eb707/5000000.png",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "downloaded PNG https://media-proxy.artblocks.io/0x145789247973c5d612bf121e9e4eef84b63eb707/5000000.png",
        "same proxy pattern for the other sampled token IDs used in visualObservations"
      ]
    },
    {
      "id": "S10",
      "author": "Art Blocks",
      "title": "Live generator renderer for PRELUDES",
      "url": "https://generator.artblocks.io/0x145789247973c5d612bf121e9e4eef84b63eb707/5000000",
      "publicationDate": null,
      "accessedAt": "2026-09-19",
      "accessMethod": "https-get",
      "accessOutcome": "inspected",
      "evidenceLocators": [
        "generator.artblocks.io live document for token 5000000",
        "used to distinguish preview PNG halt-state from the original renderer"
      ]
    }
  ]
}