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 0x88ecb70ce3c02c6c4fcddc2c88662269a9520177510549080f2b766be546000d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa073c63-24b4-4ad4-b61a-377887688e87.json and https://artists.proofprofile.net/proofs/artist/aa073c63-24b4-4ad4-b61a-377887688e87.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 0x8cfc4545a58a8bde8a7d14922822fd58efda80f644a5df99c726aa305e9d7312. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX53U2016927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca584b47b891a8f917f0577af4087ce4ff46bdd678b0c2d90028f568617435f0. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GX53U2016929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e29e2bac9c3b8d62cd41eb25d77453ed5563d35c7a18751faaa716373ca9c8d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:01:36Z), 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/GX53U2016932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf0117de7f5464769e1fc44133a48fc424837e0a4e1eb5034ee99dbc1a01ab4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLFP2244099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f696e625b4a9233ed24eb577f3e02a12b726490c66480e0e70d050eef82ae5f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBLFP2244100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83bdc508ca7f10f55ce7d9ccf3773b96aa64e5f87bf8d3447f1a5773431e628. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLFP2244101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa14574da3757348c41ba15f39683eb6beaf6ea94ea147acdaf09c835ce05b5. 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/GBLFP2244102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe74cd067a55ea7a1492b2ace477018a34724d04ca4dfef3fd3ccad719a6f29. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:37Z), 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/GBLFP2244103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91c4aab17e061323f4f8ee7f094c2ab3185ca5ef4cf2777a48acfc61ceca61f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBLFP2244104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88253575d29433bddda47560b97d0e9bae9330f6d1d49e85b3f53930187c96d2. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GBLFP2244106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93922ff9120817d19f5feab266246a317de1e8d93b24d2a468093158816914a7. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBLFP2244107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861df205394dae7f0e5608613fdfc76948b87c0d2f48bd17be3908d441db0284. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/GBLFP2244108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533e95eb0a8b5338623babfe3ff777576f29d872bcf897a9b13e0d15dae245c9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBLFP2244109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae466e22390d78fe3ee9d3c566d187f162ca930d13d45c2db679023ddfcd2b35. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:54:52Z), 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/GBLFP2244110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8ce5118949b5611282d8c61396e7f0098ddcf3f251e3e21e2a0c122478339e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBLFP2244083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7016dbb3291a1b7d4e96a918d8c291df48d7c99d6b2b220617136998dbf960ed. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBLFP2244085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a41c65b38282526b28a7518fade398f1ba80c943e9c43467030b702e5004a9. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GBLFP2244088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e14a23c46fa8b099a119c4bb08413e914d725ad64bded41fe3fb4dae7ac4e5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBLFP2244091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6101a5435a180d76a40c6e18e4fbf6a4bd550c4ab534aa38c8aa3b7f3e67274. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GBLFP2244094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b580dd4ab06a41cda56c1be6b0cb6a9bc0f68e0e27437b14df3c3dfece2433f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBLFP2244392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85b5dafe1624c9c1d64dab6fc118111f9928d44638e9c00653f538e6ad4c87f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBLFP2244393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a5b7f909b18f4d536858c47e34e4fd81b8520fe34059e8f8f72c84857703b2. 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/GBLFP2244394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2df343863b252617c219469c3ce57ebfdd0f26968aef43325f595fe70f7cbc. 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/GBLFP2244395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f9448f24436cdfbec8baf4206d810bd67062e8dabef1bd8584f46cf540c914. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBLFP2244397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bcc887564b18a0c0bb4a237a7f94c89f33478c36a687bd9c5965f22c22fec1. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:14:32Z), 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/GBLFP2244398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9940e8dae07d97deefd76aeac1213985e07017d362fda653318254434b690f8. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GBLFP2244399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4509281922ebcdd94208db647bb863117ee72b8dfac675536aa29cad4e9a45. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBLFP2244400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e41c18caad75880c3c3d3c5b38257553bae2c478f24bb4f6eddb2eb05db2ab. 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/GBLFP2244402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb3e97d4fa444715c66495b1941eaaa604c17f6136e6912000107f013453e3a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBLFP2244403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa37565887ee4b736cd0a64524e103f70ba2ca3ae9a794dff10f3c34c5562e8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLFP2252504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058a621e4a4ca6700eb767be808d4d7b0f44ec21791e83577924a4b14e6594b9. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBLFP2252508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78acba797fde51e0386e10133a5ebc83bf313cc0b8280794760d72c1baf8dc8c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBLFP2252510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d81cd73b8c8e6552491662ddb6b45222eb217cc2b7911869621bfe92ac9c05. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:57Z), 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/UKXN22366980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dfcf620f5a7aa926083b5b6a8d0b2676b126423ccb9171a51d302510668563. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKXN22366983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3d4e180ef8643747c00149f06f1773552e30f719d3295b800da5fa3324a54b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UKXN22366984.