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 0xed8eceab0e33dea450c897d1563d8606ca764b8bd5226421419fbd2b9af18d43. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43cd52ee-9e33-4095-b111-cf31b20b9c41.json and https://artists.proofprofile.net/proofs/artist/43cd52ee-9e33-4095-b111-cf31b20b9c41.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 0x8f9aa9d9eb103b16a580846e3f7dbaec0373d6b40b72d97b945561af04d39c67. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:32:23Z), 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/FRIDO2310511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3dbf5cacfcb330946c3e6c7e66f37aa1a75c08ed4da8ec80065bf3d0b8f59b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:29:18Z), 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/QT4932500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40401aa3047de34d8f5c500e65308b71575ea1f6cf5e68c366267e5c60864d2e. 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/QT4932500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7701b9f1050f628d0439b5d4fc12ad93a4cd5ea9182cd210704b6203b6bad9ce. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QT4932500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce2997bf4a28291497b306b358ad6ccf295d798c406e9d12be79c9b845a2466. 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/QT4932500008.
To Lose Your Mind / Say Goodbye (and mean it) [Bonus Tracks]