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 0x2ca1afcaacfe84e1962e2afb97e4b69fb61e06feb11eabb54e51cc796d25d39a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c33d714c-9ac9-4de8-975d-c3c4f6ed260a.json and https://artists.proofprofile.net/proofs/artist/c33d714c-9ac9-4de8-975d-c3c4f6ed260a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Where the Roses Never Fade (feat. Laura Yoder, Lorena Mast & Audie Blaylock)
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 0x27be84759f6f5d368d506e8990838f97fa2832d305d17b6e3b340d5a57f84671. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABJ1224028.
Troublesome Waters (feat. Laura Yoder, Lorena Mast, Gene Troyer & Rossetta Schmidt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5f78d8ee364ddc3c727fa908d6e3140d9111de11389e905a1107c2adde920. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABJ1224024.
I Saw the Light (feat. Lorena Mast, Laura Yoder, Stephen Schmidt, Audie Blaylock, Rossetta Schmidt, Megan Miller & Michael Miller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0daae0850fa45976e01f1f6f274311e64e586a99249dc471addcf016c4bdc7. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCABJ1224031.
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
Where There Be Any Stars in My Crown (feat. Audie Blaylock, Lorena Mast & Laura Yoder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb3fc3fd80e30ab64983d330080607039ffef2614118adbac41e9920149455a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCABJ1224035.
On the Wings of a Dove (feat. Lorena Mast & Laura Yoder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90643717d402c23380dc993354bc8da769f30c21efad1c4554cb5c4ce5fddb15. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TCABJ1224036.
Everybody Wants to Go to Heaven (feat. Rossetta Schmidt, Laura Yoder & Lorena Mast)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1449b416cd10bbdf48b24f1b1454e6e76a3e9b1a8e5fdd59e73858ed1f4ac210. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCABJ1224029.
Down to the River to Pray (feat. Lorena Mast, Laura Yoder & Rossetta Schmidt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc7e77445ceeac1a0c98c89b3804bbcb0bb849b1059be9b300592ac790809eb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCABJ1224037.