1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3f1277bba95610e4e85ffdbc9a26ff49a3116d985e3e6a95e300c8cc00d6b8c0. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/365723fd-9b6a-4ca6-955b-1a0aab161e23.json and https://artists.proofprofile.net/proofs/artist/365723fd-9b6a-4ca6-955b-1a0aab161e23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oh Yeah! (Banjos, Boisterous Ballads, And Buck)
Bluegrass Medley (Salty Dog Blues/Sitting on Top of the World/Rolling in My Sweet Baby's Arms)
I've Enjoyed As Much of This As I Can Stand
They Know About Love (Songs From Our Favorite Duo)
I Know You're Married But I Love You Still
Bluegrass Medley (Salty Dog Blues, Sitting On Top of the World, Rolling in My Sweet Baby's Arms)
Wildwood Flower (Under the Double Eagle Medley)
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 → block OTSBitcoinBlock must exist at that height 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 0xe3df945b0fe51098309b07447ef3a1c30ced8c6b558ad707aeb9aecdf9734ed0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US3L62315817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6159f87d899e2b3965bf49e254b6e0bec6ad4c3318906f35280236e681a95e8c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCRB1310678.