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 0x2cc3f7bff2cd1b986aa42ffdf327fc358af652c04964ff106a3eca16f994c596. 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/ad9b820e-04b2-4a98-b226-74f353dd7294.json and https://artists.proofprofile.net/proofs/artist/ad9b820e-04b2-4a98-b226-74f353dd7294.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 0x63d8cd1588b3a3fd82f1353a087ea1e6a43f282ff4defccf97c1c82e5c0854b8. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/USBYD0320913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32261cf58e3f3af04fe4a53b3a234c5a27e215b57b0988f4fb291e6d946fab4c. 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/US4S91500700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cefa5035574c499e4a2e679ff692b9e8635a2b079c1aceb34f7b6f9d3a3bd7c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US4S91500701.
In the Garden, Wonderful Peace (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bef53f3f1c98bb577aee1974d2ab840a36ec47381e1a380d5491780a00a901. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US4S91500702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413efa82c65e9778297facc87319452eca92f6487780cf46f3513157976f703f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US4S91500703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0355cf008ef6ad704cdd6dde4ae859e238f6105b3a1d276e540588277b0d4238. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US4S91500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49beef9b3dada43876c2703040dcf409242ef908abc1ed1cecaf501e1c328e0e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/US4S91500705.
Grace Greater Than Our Sin (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0d822b98c7acb92cb0664841fa20918ba39dce659ee22e9921d6b19804c998. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US4S91500706.
When We All Get to Heaven (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06647a1165a22f1f01e7a7180bf511c14a9f4f5d2f23da3670eaaf1366942592. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/US4S91500709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a47eb99b91d9169170a15783de282c0620c8b187be411dec96a84a359c2081. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USETB2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b502b76af9bec505512f2cf197acd5f72c5735d0798f74b05470a9033ecc19. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USETB2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a390d85d33d1dea4231325c0a523c5616864df66e8694c6898e1dd7637b769. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USETB2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9651fb9abdf92e51cff8c96dd735b7661ab086776ad4c6f1dfc444e6eaa00323. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USETB2300372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3736644d5f29a1eb4a899b771a265e351c3044eec2f8b72b1c1eb4fddc7eae9b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USETB2300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa501c875ee2b2232855216c6e95a776bfd1b560734a293e6945f301833cfae6c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USETB2300374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6982d45ccfbde6bc1fbb99074153b5a49491dc81c509b7c16e28f1d9fe7d1ef3. 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/USETB2300375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ebb23f7bb799f9ac5d33a6e60b0ff2302e8592420f16b8399958f91c4e3750. 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/USA560515070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514196da945796fe87e9dc95d26b4309ed9d345a26a55e5955f09c4aef701e4b. 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/USA560515071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c140706b0f2a6e6769910674d1a827e0089224286b50b07ac0c9a33a5db06b1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USA560515073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e9a8b0e7d08a6e626fa79d69b88dd9c6fe7c1b04d40200e680dbbc6a92d1d9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA560515075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7132d056323f41dcc7b8845e75fdd92a7505e949d25d55d09f761b45d62cf8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA560515080.
Pray Enough (with Andy Leftwich, John Randall Stewart & Robinella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b6227609a7ecd3147c97fe9afd2c37c0e30dcddbcb7459e522674ba6501d7a. 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/USCO91666904.
May You Never Be Alone (with Andy Leftwich & Vince Gill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f352568edb7ff69d66cd397032add5abe9e425bd4c12849a65598c93769ea5. 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/USCO91666909.
Willie Jones (with Andy Leftwich & Carl Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ac7dbfd10383e102b5696750116622a4526dc96a92253ed0fa2d750202d743. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCO91666910.