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 0x6c36f3cff70de2e3bc39ca0375879902b9ec983dcc8b7503478abb935902cb53. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e87a644-68c9-4063-b200-cdded03a546b.json and https://artists.proofprofile.net/proofs/artist/6e87a644-68c9-4063-b200-cdded03a546b.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 0xb255b95e4caf24341e468eda0fc71ce2b1c6d54c60f45f0a091bcf0a6bff72f9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:44Z), 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/DEZC62212655.
Rücksitz Freestyle ##ECHTER*TRAP*SCHEISS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589e0b962fdc3f9e32dd6a79f2558ffad198ed49267da30cfae3395171b69a72. 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/QZHNB2590262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9704066934174316afbeae4ed78a1c6a8508013d56eb2f16e0e8cc1476475b18. 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/QZTB62545186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc208e49028ad542f0c6f08b7d3f29a8a010e2a3559d3cda93c9444be752109f1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:26:01Z), 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/QZTB62545188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b9676f19f1dea1f9205dd9664b6248e427a75373240b0a2cf8872ceaf2fdd3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT3F52585224.