John Trudell (February 15, 1946December 8, 2015) was a Native American author, poet, actor, musician, and political activist. He was the spokesperson for the Indians of All Tribes' takeover of Alcatra
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0529760d8ebf79ef7c1b201efde583e30c5f6779697a7aefbe6f19ad7c18c00. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32be28ed-1a85-483c-8e22-dcabb5b0638f.json and https://artists.proofprofile.net/proofs/artist/32be28ed-1a85-483c-8e22-dcabb5b0638f.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11845089b10ffc3f7f20e2d8f81692aa9dcd21675efbd59498ab74b696ef352e. 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/USRY20513374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe061eb161d12edf29fcca52818d1491ac297b20c2435c9dc1dffa6ed7133f7b. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USRY20513375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8019d15c6f765ce9d01d49d3bdc5c3045ebf94743f373703d05cd24440d6e73a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USRY20513384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac01c3d92c05d508162df991843cc43225fd490afe084e48bab0bf82b1c213. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USL4Q2286355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef536035a1501f286c1d3e8a447dbe68f586564aeee599a1442d74641c72c5e5. 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/USL4Q2286366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49552aa2961d3e92cfcdb8b98c0ad48d3a0f2b3fccae9ba6137ace57d3ccde0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USX9P2315843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02590b5572347fecc921f7f05bb32a3d7d4425bc6ac881c5d52d243660914b71. 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/USX9P2315850.
AKA Grafitti Man (Original 1986 Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941cea3d45adbcae81b6276500873fc4b753c2e953b9957f5637975d0927cd94. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82412995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c27983490d10dec0f3aa5467e78dba9e70409bf1c9a814e0a3492abdaa1a16. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USAPR1624121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59850df318cb6e5df83b60b4cd4635f1f0133417c87c29aaa9dd7d6342c8768c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USAPR1624122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829ed58f0cfb21f3cd8f31c6da8e3c2473bcc678d10a49f657deb16b85a4ac95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USAPR1624124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d3538922d07e555906b1ca253ab2fbb8e7064403cc487bda7f2b04f4e70e17. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USAPR1624126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7e4fcbcc70438fbf51e31394e0111d869f63740ee1c8b50d870d813dae48b6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USAPR1624128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f649f06388c15389963e4163915fc6bf2d5ddfe2796ad392cea3d9c3bac7ab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAVP11500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d675b559a50bd405495fc4d2502d2de0e1c3efc52bffc1f1f04556e68e6ae8a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAVP11500027.