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 0x304c7bc914c9bc0ca4f63b6513682e94a9fe03fbfb2a8f6bc93fb181b1ec0db0. 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/15b0ea7a-724c-4156-bd14-1f6bf930b888.json and https://artists.proofprofile.net/proofs/artist/15b0ea7a-724c-4156-bd14-1f6bf930b888.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 0x4185694fd3d3398e9f27dda66a92df3b064186f4625f442e05fd027bbacd09ef. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJX2112922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ead81457b16b48b0c267126c0dcb84897418657c74e4893bd83d721299aba8. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/QZNJX2112923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd196a70ee9ab98f2d96e012498e1ec7202eba81387fc0c46be14f9968eeb26. 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/QZJ842001905.
SMALL TALK CAROLINA (feat. The Spirit of New Orleans Gospel Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6654effa4068255c3a25b69644d532624329c66fd9b1790fee5606b3ec284d45. 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/QZJ842002055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929423fab0fc14ae0cc0a17b79aa430421e042535b258a1bf10720b710910b75. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZJ842002162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd196a70ee9ab98f2d96e012498e1ec7202eba81387fc0c46be14f9968eeb26. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZJ842001905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08616643890bc7cf8701ca78fa2439c8413b9627108c9e02f4d9853c0d4c7cd. 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/QZJ842003376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd93038b5e5155c7c80e0e41588fd17667f324402b4671b5a6aa0f590da63b. 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/QZJ842003190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0783e913bafde140fc0813a043b0ac288a29f696035491871713edf33866379f. 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/QZJ842003518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08616643890bc7cf8701ca78fa2439c8413b9627108c9e02f4d9853c0d4c7cd. 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/QZJ842003376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd93038b5e5155c7c80e0e41588fd17667f324402b4671b5a6aa0f590da63b. 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/QZJ842003190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27861c9371ead31c97d62d4c34b8c5b029a9aa1a1332f04e348f0e1d78aa323e. 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/QZJ842003519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf471e5cf1c1a443e22f9561512beb30d2a27a38c9804b617174bdbd7ecdd4a6e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TLVEM2455276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3161f49488f52302dd2f112ae4abd282499a8d8a229400c25a0aa5caecf50da0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPEW2447306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f437e0bad70b790f7885f4246ce2fc3e424971f7cb6aead9635296f8525860. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USA2P2541037.