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 0xacca2b9ff39ddc6364ac9476adbe9fa02ceeda81bc7f29609660307ec667c235. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db870a9c-d422-41c9-aba3-a1add5e60f5b.json and https://artists.proofprofile.net/proofs/artist/db870a9c-d422-41c9-aba3-a1add5e60f5b.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 0x95c73b15d0c92b8cf382ddc681284fb0238b4bc31f170f8058c59815efee8e4d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:47:21Z), 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/JPR651900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1ce0ca232406a4d228b2055dd7f1d4aae14e45825a2f9d8890dfd3a3b12dd5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPR651900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d708bb51d17a3f4d445a070f846934db52e93259dde457f53c8e9d81bf33ec6. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:06:02Z), 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/JPR651900279.
TRIANGLE -THUNDER DRAGON- (Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec5cf14dd505d28b293d3f860fd966acba3e959fc014ab49b135c4d76f7c69. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPR651900286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f62b6f8d67b0f6b53b05d99bd40ab428b01c1860df288f2b4b378fee7b6f1f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPR651900287.