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 0x3d2aa17bb2563c6006e0fab5513f566306f1dfa35d3b2b034a0bc3387f6f5ef6. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62d74263-1e82-426b-8a39-cc06fbb4921f.json and https://artists.proofprofile.net/proofs/artist/62d74263-1e82-426b-8a39-cc06fbb4921f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mortal Sport Argonaut / Super Natural Teeth
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 0x4a9a94fec5e0c8cdcb0499815474c950177af298c9e0a1d68f799e2052f242c7. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:24:31Z), 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/GBKPL2082909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470cc23fe1b06efa4ad9b75f8b8f46b91545918818c7966bdcd9e74f445a77a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GBKPL2082912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4ff764e4ed8f32d9dd26dc985e5ef6c6d5099fcf52e1a9c4096d819adc75be. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GBKPL2082913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882ffa14dfdcfcff8a04d40d81abff734d24a5e03337ef6792d46d293069c44. 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/GBKPL2082914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd71fea2f34f7f1f85b375c01447caf046fd35d7936547675b552d2f2503855c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:42Z), 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/GBKPL2081845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffc48d5dcf272fab16c6dad13ac2c9ed4813416484998a7cd8ba827ccd6c57c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBKPL2082908.