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 0x3a1e3931b0ef3a927ea41b80478632a7850e5d3fb209063d6e9896851b0f6848. 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/2d91f754-9dc6-4388-86b1-7c4a00a6c72a.json and https://artists.proofprofile.net/proofs/artist/2d91f754-9dc6-4388-86b1-7c4a00a6c72a.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 0x997a5c93da3a7f08c6783d68d54b71e4cdd3e73d81f285c06f1097f223f5577e. 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/QM2PV1564629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3ae91432860bde2fa0a8dea57ec7ccad6a1a32ee330beba8d5ef0039eb3994. 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/QM2PV1564630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cb2ec8c349208c8a0042aa46ccd62697c104305d61c2705688928790d8bf80. 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/QM2PV1564631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785088ba8ea7459c1b4022555a658fe75d6ea801c9378b33011286afae3a1c27. 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/QM2PV1564632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89342278cc643211dbe10a04484101ac914a33ca4bbdacbe63b9076b98c90663. 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/QM2PV1564633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2dbd0fd4185ff431098e782cc30610e02fe920d23678b083b645c542c1d9b4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QM2PV1564635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56842b6691644ec6cae55570366544e1f75631e81acb5e343463898881bdab12. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QM2PV1564636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c6879656c3203b288749a5ef68a42cd5c12bad6337278e467afdca67223db6. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:26:19Z), 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/QM2PV1564637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1bb497752953b5a9aac3895e95412cba3474889e1b4c52ac3be4d789ca1527. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QM2PV1564638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf56f33cc062e867565c3fd3338821f5b02e3692618e4f0805c281bb97cff860. 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/QMPKX1704319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e8039f21e828d649643342bf561887728abe7df4ddbc6a642a9de6c14ada36. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:37:28Z), 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/QMPKX1704323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa384ec15764b948f11ce3803003d8eaa7852d590ecea944028e9f41cc9ab4519. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMPKX1704328.
World Percussion for Modern Dance Volume 1
World Percussion for Modern Dance Volume 2
World Percussion for Modern Dance Volume 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06911e4563a0d3a75d967e8b841e6bdfb3c644a77910e0b28e2a5a0a9a0082e0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMEP2058963.