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 0x8439290dbb389510877cf3a49fa1d1bf56883904a4a2cfc98e8434e7a1bee72f. 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/03bdf5ca-26b4-42bd-a9fa-c0af6ba74d5c.json and https://artists.proofprofile.net/proofs/artist/03bdf5ca-26b4-42bd-a9fa-c0af6ba74d5c.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 0x01e19e9747742aeff7c782bae9b29b7914ceee7699405ff3959e68502e3e13c1. 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/AUNE31900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65fcffeb331a0852e1f7febb8f061c3f6fb80d344f74cec9fa8141e3e0bcdd9. 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/AUNE31900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e519fe29e926e1d0d5982ce822f18a42f0f50362a16cd6512d5dbecd3c5e4e9. 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/DESY21401241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b9f7a5278f66b70a779bb852b54f7ef5351995037a8db7d3de9415b28487df. 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/DESY21401242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4862156c36dab54896027a17a358626e251010301a2b4569fc8a9131b66a794e. 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/DESY21401243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f2c29c9cf864f23658d41f621e36498adf79d78f49c5628cca4e3075a63bff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DESY21401244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc30452e3bf7b568e9a0475e3285f7b084ee503a3d29030380baf798986547bb. 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/DESY21401245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad495bbac9736b3bcec81393816440fe60b76fab6bf3a232422d55a6aab1f6d. 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/DESY21401246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a66ad3f8a79522bba3b76b46debde5b355b42ec6c31fc928434b81479a963d6. 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/DESY21401248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34761905870988d5c150e79f9710f894ef57dbce221b744a103289ee015f5b. 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/DESY21401249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00ddf93fb9fbf460c763e5e76f6b06c29a9841c3c2ccbfa0f31bbfa11f0b15e. 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/DESY21401250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f2efcb03ca6eaae07fdc78096bb38c925d29937f6bf4b53a9589846a3d0a0. 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/US6680916163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052d236506028d908c49f6f23568a5711d8dd1c4a4c1d49a4266a30573d27fa1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US6680916164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebaf98db14e72371bd20df7c45a6c5ee9fbc7b99bc885f8902f498ed4a21c3a. 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/FRPES2301390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad436c403ee01b2befbce24042d9e6f832be45a302370537b2d1e0f8e00bb39. 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/DEQ022283312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8adb81330050e419fd186602a5fdd8c7d6c7ce84209cb67006d974da29990. 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/DEQ022281643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0e5043e100b223d8d2a2f02befbca4bcb47bf54d1146f06f5563a2fa92395. 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/DESY21401251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e89ccae37fc06ea4df761efd4799631259944685c3df33dcf31ca22997d78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DESY21401106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a75212a6a1acb53e9174cd0d53d2db254d826bbdc651e23c6be3f19040171c. 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/DESY21401114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347535f6a2a4f832e0cf582fb8400ca710333d4a6b2af88b7cf65c86d80e1580. 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/DESY21400867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd8945c84e376f52ed08473b6c692c51aa258fbe64116718b446313aec8fd1a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM24S1912819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24c98f247adde2adb51bf1e57470e8925346d8165951a8dfbc401f251ecd0c8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM24S1912820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc280b7042acea46e4e44214def4d3e4811e28a22442453754498633835bc966c. 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/QM24S1908198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f92233e251617c7f4f68b51b5aafe71b233247fc29a943b490b945e70dd787b. 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/QM24S1834229.
Olivia Nelson 'Hideaway' (K, Le Maestro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a874804b0089582cf191206f08efdd886de09bc899895d4018cc27d9a101c8. 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/QM24S1704898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d1513c4b6b1f6d0e1b7bd706302b73bc4ab4b71f5b29c957f35d03ea32988b. 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/DESY21401282.