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 0x7fd1ebcc5e98d7989a6a9bfe4495cff96a096644ace69ad32ceec5488f2680f0. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03c87f38-12de-4466-b674-c9565b488f4d.json and https://artists.proofprofile.net/proofs/artist/03c87f38-12de-4466-b674-c9565b488f4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Claude Diallo Situation (feat. Andy McGhee)
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 0xb56cf73fc7207c45cee286e3865b090aa359cc06ff73a7d46d9bfe0e4e4e3883. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM2KL2300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2ad06c8f4a2d20712af43edfbdf3269690ce7b2de89d08da759b1ef370d951. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:05:30Z), 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/QM2KL2400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387cccf7d3ecce464404c71eda74f21fde0e0fcaf1550db21bb8879a803b9cff. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM2KL2400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ca21b205cd24ded529f12d37758ba92587cfe5809e464853915faab0af55dd. 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/QM2KL2400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05e09ebb0b5dbeef54443ffce7faeef938d0731acba9548b4fa13da80ea1279. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM2KL2400337.