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 0x39d4634f98be5b76b761d33b424dc52c7bfbbf452fab13b47caedb59b9afdeb5. 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/cc341d15-7bfe-4ed2-b916-85b125c4220c.json and https://artists.proofprofile.net/proofs/artist/cc341d15-7bfe-4ed2-b916-85b125c4220c.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 0x46d072d57edcda78a1c1461951fefe716af71d0932e82d463940a0789d76ad0e. 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/QMF922050209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7268244130cc0ddb2effcee582e49ec90efb4c67fdb9ea883b9e504e9e5d588. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMF922050210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde36cea5470c9f6602f476fe3c02c482dde599e137918a24ca35210bd9b47a9. 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/QMF922050211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f7c39fc98139da6902e7e70c310a3269fd62730b04ed248d53d4c0f2f02e54. 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/QMF922050212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad495924c7a3db406b0c0e96fe9ab72fb0f5a138d610f773a4e1ded52d6dda4. 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/QMF922050213.
Revelation 5 (There Is One Found Worthy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6af66a252d758a14ba791dcb320684ed03bc24ea8cb3100e12b5b0f59a37f3. 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/QMF922050214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498cecb683e6ef9fcd43f5036db4e826bdb2f98ec846292c4736164cda85d20. 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/QMF922050215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f3b2b00a086014a62ae75fdaa86acdfd4677f28668b31090fdee77f52646df. 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/QMF922050216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7304fcaac82b71d4dcf9ab36339de1d2aaae9f126cad8146c8c9a840498d8c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USN5Q1700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffda82c82b5b1470004098993e828749fd4108b073f18f41919230339ed0bb2. 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/USN5Q1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dafbe63c3a6be36de01dbbdc78ef3c334b3764272edd43316b5af4ea4adc34. 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/USN5Q1700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7181edeeac55e868e67574b91bdbe5729a9beb5463baf6af8c9a008b9e141e7. 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/USN5Q1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfee6d478d5cda4998dc84b64d1af6e6c8ce2f4d9f8675034fb2dbbc33b9cc10. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USN5Q1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7291d3dab07f9b3aed54f1b773e2910df9ed1afee712056c73a956a64601ff28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USN5Q1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e7557a0d3f79c1df3dfc579d800abb909ff836418c22fa6edbfc1273bdb3cc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCACK1578350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d59d128b70d45d88de3409c0ee98eb1b7f210bdcc9723c0c3b98c3c9d85d6d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACK1578352.
Revelation of Jesus (Bartimaeus) [feat. Katie Reed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130b8d25b766c7192427dc560e5811705dd8159103a599d55a214bb923577d87. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACK1578362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af9ae6ea0276f616002d5a52de3564246b537911ac080c5fbb9631111ac1d9. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/TCACK1578363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f2452e1dd682705d04c7ccedbefe0f62e9a955b4225ecd03306fc5770524a0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACK1578364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1efdde6fd2a7b203af15f4346c0d71bf2bcbb7e574a88b2594a64bfda353b49. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACK1578365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51c7ef9f90f9a9f20c8beb4380e0eaad28bdf132718ef9787ca3511dc64fba4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACK1578366.
We Won't Stop (Live) [feat. the Cry & Corey Russell]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55de24fb55b768dbf299dc7a632bede75a8cf0325fec2c2ac51ce2dafd3c4150. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USN5Q1400050.