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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022a44cb2f5f6d21b21ae84638431bd218d82ad35d810c20e47dd75f08e3db18. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49a9f2fe-f921-4b4c-bcc0-2b56cbe2c3de.json and https://artists.proofprofile.net/proofs/artist/49a9f2fe-f921-4b4c-bcc0-2b56cbe2c3de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Your Favorite Hits Unplugged and Acoustic, Vol. 1
Your Favorite Hits Unplugged and Acoustic, Vol. 2
Your Favorite Hits Unplugged and Acoustic, Vol. 3
Your Favorite Hits Unplugged and Acoustic, Vol. 4
Stay the Night (Acoustic Version) [Zedd Ft. Hayley Williams Cover]
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b8869b57253903c0e35333e995c4123834b0fa37e0b273eba0f2044875d38. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FR0W61901162.
Your Favorite Hits Unplugged and Acoustic, Vol. 5
Your Favorite Hits Unplugged and Acoustic, Vol. 6
Your Favorite Hits Unplugged and Acoustic, Vol. 7
Your Favorite Hits Unplugged and Acoustic, Vol. 8
Your Favorite Hits Unplugged and Acoustic, Vol. 9
Your Favorite Hits Unplugged and Acoustic, Vol. 10
Your Favorite Hits Unplugged and Acoustic, Vol. 11