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 0xcdcb4d97aaf6bb5eca25a003bee36de86b4ca89ba45b2b8b47f4b779f18e7005. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebb39ea5-5ed6-4daf-ad38-384535206ec9.json and https://artists.proofprofile.net/proofs/artist/ebb39ea5-5ed6-4daf-ad38-384535206ec9.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 0xd937850b5af263784a64937ecab30d294ff66ca4cf397e5f8ea9d16a27b1b77d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:48:47Z), 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/QZPJ32309409.
My Soul, Your Beats! (English RnB Cover)
Hana Ni Natte - Be A Flower (English Metal Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86d45f407f92a3ee2b9ab1540d2cee8a76a2c3b04edbb6a59e5de7b4b4d733d. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:22Z), 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/QZPJ32341052.
One Last Kiss (Multilanguage Metal Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ab3887f4575185e25a7f41b5bbfdebbc91840aef0d31a6a06476dab18b061a. 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/QZPJ32386717.
Virtue And Vice (Metal Cover Español Latino)