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 0xa84bbe7fecc31af3f1e35f9035434af144ad5574e17d89faddddb0f99efaa26c. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fb0a18a-7455-4aad-86ad-4b4db41776dd.json and https://artists.proofprofile.net/proofs/artist/7fb0a18a-7455-4aad-86ad-4b4db41776dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don't Want to Talk About It (Acoustic Version)
Have I Told You Lately (Acoustic Version)
Can You Feel the Love Tonight (Acoustic Version)
When You Say Nothing At All (Acoustic Version)
Don't Look Back in Anger (Acoustic Version)
Best I Ever Had (Grey Sky Morning) [Acoustic Version]
Can't Help Falling in Love (Acoustic Version)
Nothing's Gonna Change My Love for You (Acoustic Version)
Leaving on a Jet Plane (Acoustic Version)
I Live My Life for You (Acoustic Version)
Wake Me Up When September Ends (Acoustic Version)
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 0x9e64212decb64e5750e00c6f45e46df505cc820d3f3b7f47dd958c669b5a0457. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZWDW2458316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f2bb05a8f88115422b9f5d00dd92b4f2c4735a304fa811369e3ca57ecf7258. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZN882408577.