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 0x34c4136d0109865fa050c2b43ea8a8cb19c2b5e6caf85fad2d0f6a78dc033939. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a49711c7-1311-441c-91da-bc735b8a8ce8.json and https://artists.proofprofile.net/proofs/artist/a49711c7-1311-441c-91da-bc735b8a8ce8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jon's Tracks: Ballads, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jons' Tracks: Ballads, Vol. 2 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Classic Rock, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Ballads, Vol. 3 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Ballads, Vol. 4 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Girl Pop, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Pop / Soul / Disco, No. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Latin / Pop, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Classic Pop/Rock, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Easy Jazz, Vol. 1 (Studio Quality Backing Tracks for Guitar Based Performers)
Jon's Tracks: Kiwi / Aussie Classics, Vol. 3 (Studio Quality Backing Tracks for Guitar Based Performers)
Classic Pop/Rock, Vol. 4 - Studio Quality Backing Track
Classic Pop/Rock, Vol. 3 - Studio Quality Backing Tracks (For Guitar Based Performers)
Pop, Vol. 4 - Studio Quality Backing Tracks (For Guitar Based Performers)
Pop, Vol. 3 - Studio Quality Backing Tracks (For Guitar Based Performers)
Classic Pop/Rock, Vol. 5 - Studio Quality Backing Tracks
Classic Pop/Rock, Vol. 4 - Studio Quality Backing Track (For Guitar Based Performers)
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 0x56c1f2855067d4afd723b581b60862c6c99a40e066c3eeeeff914eef9d90061d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NZAM01402140.
Classic Pop/Rock, Vol. 5 - Studio Quality Backing Tracks (For Guitar Based Performers)
Thinking Out Loud (Instrumental Backing Track) [In the Style of Ed Sheeran] [Minus Guitar]
Jon's Tracks: Pop / Soul / Disco, Vol. 2 (Studio Quality Backing Tracks for Guitar Based Performers)
Purple Rain (Karaoke Backing Track) [In the Style of Prince] [Minus Guitar]