Thinking Fellers Union Local 282 (often shorted to 'Thinking Fellers' or 'TFUL282') were an American indie rock band, which was formed in 1986 in San Francisco, California though half of its members a
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8105826658bf330fb199ab63e71715f25a1051af4a354aa0207a71d4bba21547. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4a352ca-1ee3-4981-9b7c-0bbbec4648f4.json and https://artists.proofprofile.net/proofs/artist/c4a352ca-1ee3-4981-9b7c-0bbbec4648f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3a3555e00b89c42f1fb5d5c00f682f2d78e491376e9e3a747a8d889801a0fe. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:43:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21909280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33568e7ff44e870bcc63bc875fba1f87f7649a5a776ab6fbec814f3b37ab09b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41981535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc27301f9055445aa572b094a51d2aab21a944e27a2e266cfa5f2b33e2c9f962. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41981536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1168b3064445bdf8e3201495131ea13465a9a2164b9d489097f809f1553d1bd. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:03:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41981537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d0ac7066bae70fe69e42765a8bf2cc44f3945805117c6924e1274fd00b927a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21908448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d80b0fb9a2e6f994cb342b49cfc77adc8a8c736c3f4d7c644b1a3201d728a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4ec70efc7793d0c73172e2b130b935c47ab633a836ade9380bb7a44cd73327. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5639655612b05d019201463a2c9289cbe135da2ac701e9a1fc550da292d9189e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:34:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d8703db7f570c43d10746acd47d0f24789553997b76261ce823205e6e18c8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7153b4524d74a06f3f771d96a8d93e06ca84c18edc02e513b041947a2c52a5f1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31723333062bb32d73d5cb664e13d724153e43cd774920b7d8444828905eb850. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d57a79840d7fef9469a215481443c614a838fc665171e263b7e47357914fb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49cf9bc26e68b73df5766b087e587315e0d2d16d1ed8d64a967b02ee1e1487d. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:34:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfed22c53f6aa0ebe9e63641ea67e2fb63b12f3e008cc5caa8cafa1e93a674f5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69daad0482a82968ae4701f46bb0c54cfbf5fe299476951b64484dbead4133d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41947785.
Bob Dinners and Tubby Turdner Present...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415f6dd2083a47df7877d1cd3378bfafed6cb9232187256d0625afc374d0ec74. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA3B0300101.