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 0xc448ecc80ef2a0a600cb7fcdfb457bf360d5be6c334b8f1dd6298c61d118a92e. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcfd0e17-3220-42ab-8360-ec6a48c7dca6.json and https://artists.proofprofile.net/proofs/artist/fcfd0e17-3220-42ab-8360-ec6a48c7dca6.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 0xd193c660b9e5fef9c2492410516f1f13bcdbe4f3c07d587fff332cfb559f77e5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB82373275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56ea7e3c193cf9a9b2eaef651359016cb773788df8e754689c17a46c248d841. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZTB82373276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d643d272d7a625bb625a163245de40b454c01820c7ca001ff50574bc882eeb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTB82373260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2045e261339f7d58b5a5fffda1070901b74be1b43a9c46bef31befe8f675e7df. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTB82373261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac672ccdd0c94cabce2da54e79519bbb78ae5974e6889bc7a54c56ffd651de1. 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/QZTB82373262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec450b50e77d1b9c5fce7180478964933e5a318e72a2fc6363694e59b490cfa9. 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/QZTB82373265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ce83b05450ee08d3b9e7e211b09becfcacb0d925be38094210b16178fd1e16. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZTB82373266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4c73afe105b031b96038e0cb004f7cb849c83434d1f37572c3020b29dc31a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZTB82373267.
2 In The Pink And A Fist In The Stink (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eba7d9e33b930a0f6faf350e1117e2d8899e3e7a98ef97d394ad4ec7aa85e4. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZTB82373268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234ac2b222279c2d0fcdb473906e3353fc1674c61592574a1cc7629d4d4192c4. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZTB82373269.
S.L.U.T (Sexually Liberated Urban Teenagers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337522dc68f9e52eccc68c1018aeac279af52714b979bfd12e0eee403fe99e31. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZTB82373271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5de11f2c2c9111a84e5a075c0477810ca21b4347ccb77c228940f3fd0254b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTB82373273.