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 0x3b8028416499bd0a08da49d88917dd5034f6b39b88b8221a512040fe88857139. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/560a4166-217c-4b0b-a5fb-01d1e09c536e.json and https://artists.proofprofile.net/proofs/artist/560a4166-217c-4b0b-a5fb-01d1e09c536e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All My Baby Left Me Was a Note, My Guitar and a Cookie Jar
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 0xbd6f153b9b9c13b2240ca82d6ab1529ecbb3a78220b4c130ff5b086833a4d28c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:36Z), 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/USGV60710254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f0880d56d5490a3dc3fbf25c0519bbeab94963f6dbbf24d57f236ad736ff25. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:51Z), 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/USGV60710119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4876dadef6e4235181db9f039481803f6fd37f313891403b098b520c175d3db5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USGV60710120.
This Is the Reason for the Season (Live)
Mississippi Delta - Single (feat. Bruce Billups)