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 0xfec5591c6a7e7024b321aee8e9301bb85d2c1217963bf429521259a2bfe053a7. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2da54d14-ce2e-4ad4-b8fc-fa6c80aa06c8.json and https://artists.proofprofile.net/proofs/artist/2da54d14-ce2e-4ad4-b8fc-fa6c80aa06c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hearts Unchained - At War With A Passionless World
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 0x05d455829588b0b6ebe71eae17eb27b8ee3dc73287a44aa1436b3737aa2ff0ea. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DES562210084.
The Sun Goes Down (A Thin Lizzy Interpretation)
The Sun Goes Down - A Thin Lizzy Interpretation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b5251dc75af6606dee9e1561adc3d2a87bb5f03a362a874236640edb110dc. 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/DES562511921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d5ac46bcd2e1f21ba457e105aa7b1bff28b5e5f8349431384284f7dd8555da. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DES562511919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b5251dc75af6606dee9e1561adc3d2a87bb5f03a362a874236640edb110dc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:57:16Z), 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/DES562511921.