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 0x9e5864341cf062605e9f46ec1a7ff03a638f4ace18290ff16eec68de052629e3. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/716c58a0-2fac-458d-993f-d1ad76de2e87.json and https://artists.proofprofile.net/proofs/artist/716c58a0-2fac-458d-993f-d1ad76de2e87.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 0xcdfb1195872ed3eb6a119be6caa29adc44a0114be4c19d9a4f3be7551fb79c96. 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/CZUM72400385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799ce49f6b1977ad7d68df157ba7d8cf851f38687d6052a204a0cbd3f5f4b1f9. 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/CZUM72300770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959f8b804593d26b7ab66d27a801120ff55be06f8d7bc2a030e312e52435a509. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:48:59Z), 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/CZUM72400386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04eea694209926d81249b0e29926e4bcf73618f1cf57ccd55f8d9206fc50fd5. 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/CZUM72400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2af2e3f7a087bac22e9b8efcf6802e3c75d8fa929f6e11187209ca67e4be9be. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZUM72400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec3a31a1a9df4014340d292a1444f6559a82c4b7c7622532d959979b847a576. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZUM72400388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e9b1a9624109b0155d4b64bbeaa0c796c5c6d716d2e7063fe1b895f6e8183d. 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/CZUM72301405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1da4eaa958cf3f335f387c81e0e0a42fdadee3c17d99e1823fe65e8653e1ab4. 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/CZUM72400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289542c8a73368ae14b24da0b2fa9be2bac459c116a7191001ef8d3f3b0fe705. 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/CZUM72400390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39963e7680a5528498f008d048654e9996fa86c92b50f2637fbbeb4d3dfa546. 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/QZYFZ2428466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa694f89d29c126ef80d09cab0d6e5c2a399b2f188a3ae8b24f21072b7d298476. 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/QZMEQ2364104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992fd6f929a1602dab9fedef53d26e02bd4a788532346c2124e5f8e032700e92. 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/CZUM72400601.
COLLABOTRIP (From MMOriginals "COLLABOTRIP" Show)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c93c65d0c976da2a352626176d6c89b5b81dc6a0bef6869c33fc53e0afb02a2. 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/CZA163306140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783c863444a2805a77e4853db981ad88995dbd0ce65289c1f6b121dd4e60c327. 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/QZWDW2409588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa960118f991f652854618f5b0b0a3ef8859c9de7fd629157d17014713dc5ff1b. 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/QZYFZ2447727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbc8308fa722f7c8088b111f8543a72908bc3da8a2f8e145bae4639227a5f69. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZYFZ2417300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc550e4a24e4032e5c95d726df0f95d34706c0091344918fa6e71dff05e9fb2c1. 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/QZTAS2459669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f774c1096b91ca61bea40bdeac22014d575521fa6fc0873e90bbb3fc5424a1c. 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/QZTAS2459670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea70a1873affa6836219c4ac419d91c9a5a6ae26d11f1e2419f80c05d969398. 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/QZTAS2459671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02275ccaa7850d4684dafe61f9e8669578d55d10b26328490b7cbdb05f26136. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:34Z), 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/QZHNC2443504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d720d394050f94de244a211c3b6c92fcde96e46d111e727c57be3aa3f7b6d9a. 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/QZTAS2459675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b3f997e566909b72f85e776ff06d0eb7fed611a73d357512271bfafd2ca7b3. 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/QZTAS2459676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa377b6fc48c6cd4466b8230138a20d06b1cd2e5c701891a6e8dc9923c540782f. 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/QZTAS2459679.