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 0x378cf4abd3caf5278b93d41f2ee327104f5eff6a9383a38a10374708f5c4458a. 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/51600806-5f53-4baa-8067-1398cb3e9a80.json and https://artists.proofprofile.net/proofs/artist/51600806-5f53-4baa-8067-1398cb3e9a80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 2
Romance and Love Songs for My Darling - Backing Tracks for Lovers, Vol. 5
Romance and Love Songs for My Darling - Backing Tracks for Lovers, Vol. 4
Drag Queen Karaoke - Essential Backing Tracks, Vol. 4
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 3
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 9
Romance and Love Songs for My Darling - Backing Tracks for Lovers, Vol. 2
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 4
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 7
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 1
Drag Queen Karaoke - Essential Backing Tracks, Vol. 3
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 10
Romance and Love Songs for My Darling - Backing Tracks for Lovers, Vol. 3
Romance and Love Songs for My Darling - Backing Tracks for Lovers, Vol. 1
Drag Queen Karaoke - Essential Backing Tracks, Vol. 5
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 5
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 6
Drag Queen Karaoke - Essential Backing Tracks, Vol. 2
Drag Queen Karaoke - Essential Backing Tracks, Vol. 1
Saturday Night Diva - Disco and Dance Backing Tracks for Female Vocalists, 8
Outkast (Originally Performed by Hey Ya!) [Instrumental]
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 0x7e94f01ce44ccc31bb684871005587e2cc5c75d7ce80f6c2bba6b10d607a8068. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QM6P41511097.
Alfie, You're My World - Backing Track Classics