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 0x379d43e15764e3854b9fc5c0d212403c0972008d7dcc110da6a593d4c088ce23. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99151206-bb3b-4ba6-96b6-13213f85ad6f.json and https://artists.proofprofile.net/proofs/artist/99151206-bb3b-4ba6-96b6-13213f85ad6f.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 0x0880d5544bee618cd82bb643abc9f203a1e9ab261a8c1837e875fee127227eba. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLRD52269234.
I Ain't Worried - Acoustic Covers Versions of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2856cd0b82081d436b065465fe5ac6ffb0a47483485f15754b289b15480313. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLRD52269235.
Prayer in C - Acoustic Covers Versions of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499ddd0c36c27143b9057e57f7680d3bf1d383e06290c4b9cbc1e25401f9401b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLRD52269236.
Desperado - Acoustic Covers Versions of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeac1c20206e4f886a9a8a387a7b8b0c153d145e7c387ed0cf8f855c2de68ba. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD52269237.
Acoustic Covers (THE BEST EVER ACOUSTIC) - Acoustic covers and acoustic versions of all your favourites
Covers & Chill Lounge Covers To Relax - Covers better than the Original - Acoustic Covers Versions - Chill Out Covers of Popular Songs
Acustic Covers of Popular Songs - Chill Out Covers - Chillout Covers - Chill Acoustic Relaxing Calming Songs
Acustic Covers of Popular Songs - Acustico Relax - Covers Acusticos en ingles - Versiones Acústicas - Chill Out Covers
Chill Covers of Popular Songs - Acustico Relax - Covers Acusticos en ingles - Versiones Acústicas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826778b19f8fec913ccb5d653f24802d5807756042532b7e84be0edf50c6eb49. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLRD51967459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0880d5544bee618cd82bb643abc9f203a1e9ab261a8c1837e875fee127227eba. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/NLRD52269234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2856cd0b82081d436b065465fe5ac6ffb0a47483485f15754b289b15480313. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLRD52269235.