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 0x58c5a814dfa07f181dfcc4d9985f85c9a7fc99b2c16dcc478a90b16245e0c862. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16e361a0-f508-45e8-b05b-25cbe14e9be0.json and https://artists.proofprofile.net/proofs/artist/16e361a0-f508-45e8-b05b-25cbe14e9be0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
愛して愛して愛して愛して愛して (SARA Voice)
愛して愛して愛して愛して愛して (ION Voice)
愛して愛して愛して愛して愛して (RINA Voice)
愛して愛して愛して愛して愛して (COCONA Voice)
愛して愛して愛して愛して愛して (YUKI Voice)
愛して愛して愛して愛して愛して (MIYU Voice)
愛して愛して愛して愛して愛して (SHUKA Voice)
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 0x0a3b9867a92a2c4ea91f7e53ef174901b96b6c6d7c7f121d899f39ea74a9edee. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:20:02Z), 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/JPX952400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c5351027df9ccdae61b9bcc4993f039afa55e07ee1513cbf73a8215f018a51. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:21Z), 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/JPX952500016.