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 0xce9dd3962fe0c02623764b808ce61548188fb53a22121eaaa84c7dccf60bbf85. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ad66392-2965-4af6-8102-2288b9d3cab2.json and https://artists.proofprofile.net/proofs/artist/3ad66392-2965-4af6-8102-2288b9d3cab2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Posiady w karcmie Bania (wersja skrócona)
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 0x32af9b4a67ac925dae3175483dcdfb6e50be7f89f53ff6dee6b068cee76f92da. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZWFE2319868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b2fbd47a6105d6c1307499395bb9fcf7cdbb595a7138ce6dafcdf3e981c1e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:46Z), 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/QZWFE2319869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908c8ace4d5bdb36dd29495169611b76ea6452a4c073a3840f517cf3302c2303. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:31:17Z), 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/QZWFE2319870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180061d75f3f0d63f36a21fbe138086cb7a26f5dbe660b61bc97c4700f75fc4e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:53Z), 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/QZHN52439372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ce8b6cde19e015660e071efe440be3ba1bbfdc48078157588373877b5d7e73. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZHNB2411950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704255efc272c2570d7126fdfa718e229c3fa920d208060e38859d8506966c55. 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/QZWFT2569390.