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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83b05b0dd79987124efb421adc8cb5a6ecc7fd30c04d3d4f016bb3637206a08. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e4b2eda-01ca-45a7-a964-a2a8b9f3304f.json and https://artists.proofprofile.net/proofs/artist/2e4b2eda-01ca-45a7-a964-a2a8b9f3304f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea83bb7af4b4daa8bc381f76800658d895a8b1ec33fbf05527a581ceca81743c. 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/USVPR0006390.
Anything You Do (feat. Nadine Sutherland)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc094b90c5b35a2417d9d46773c9f9dfc4bfcbeefd47d256cb731e5a1ce948ab0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USVPR0006391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe632570fa9dc22cfb99c4709c8cea6d80bb331f696c1387036a02a814fb874. 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/USVPR0006691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a46f69895a083da6400fbd044abc70c36f29180f6505032eb6b9f4e8eea9994. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USVPR0006392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4f77e92ac3b00fd290212c61602eea5675638d5a8fb4cfc36c8f2de11bc323. 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/USVPR0006684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c989c47f6a1906a42ef25304b318fefe28192bd2f2061b059a22c7c2a3ae30e. 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/USVPR0006393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289a159418d6a46a1719cc3085b66df4508f1ffcb333154a208eced4079ae51a. 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/USVPR0006395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2cec36265a3db9184287e786c56f6851f2781e64649ce08a4f24c73a96f58f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USVPR0006397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7224dcf8778adca1408f8a002358cb718ea042d2fa968171aaea81c94b4563. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USVPR0006398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231416e9e6d16747e4d8680a4b1468f457f3d2f1c19c59597d7d8e22b139111a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USVPR0006399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887649d3b0c8086e7492a08ee1ea4407fb69c18f6ce4b9edac49315b051063ac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USVPR0006400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ae65d56a6da73015910ec1a0e7c308fe570bf4365f437c4043f73610169a9c. 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/USVPR0006962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d61af5cf3444125bbbac668e97919df1823c542d4ef2cdae375ebe9809b975. 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/USVPR0006975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd443c2239141811efa7a3e4a1709cf21cd378ace4c3ee97b112f794c566d3250. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USVPR0006401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60030b572e2f2a7cd56e9969906520890ff3009a86d3dd2028dc6684fd1f250e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USVPR0006404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a323257d0143de615f3a389c1550605ba2013b96e0b0e3a92e3b4ed9e3de6e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USVPR0006405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584fb9b76464d7111a7c1e36ca359daced4ac03e9ed7ffa1e964514b568d52eb. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USVPR0006396.
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 0x289239520ab837711e0ec25d9ccbdfa97190d3225a0995d50019a52bf34a053e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USVPR0006394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca09663885fb477683f9f96731c11d4d6a3b2651e06f6e6e9613f0a73d26e61. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USVPR0006402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636a4c22f2211f96c5f4b886932378516b178dfde884bed3275f3e6a3dbddbe5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USVPR0006403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4eb97cbb88741c5cbeeb5d6c69a30b8fc20a1c2b86223cafe3314d5a9526d3. 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/QM4TX2432170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f98399a68b4ae6029aeffe226bd8fe439fb40082353d8f92f967ee2d2015ec. 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/USUYG1365136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd78c7414094440d841ed40d00398adba9b68529577339c6d4b7dd7896a3188. 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/USUYG1365342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253d5bfa3568105897758479d112656543a7060f17d408e105c33fd590205d07. 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/QMKKH2000668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f96475a351e4ddc92bf146e0ca3474cbd5204e9153058114afa475c22dbf23. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMKKH2000669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d445b18b89a91f30bb0f1924345b6cd7bd1033ad7afd1cd40d9fe1a4e8f1a9d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JMA271907446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbaef5b54e91588667a0d8bf9d487ad80e874b99346fc87c23122d420e1552c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM6N21867007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97939390a802e28ec3221c2f40fc518d901f908bf641bbd3950fcbcce12b2d96. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P1803667.