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 0xa90fc20c65f782f095ebd6c1356781f152e3f745598f813902e3eae0fbc71602. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39adf7b6-0f6b-44db-ac8b-f6f1dbbc4aea.json and https://artists.proofprofile.net/proofs/artist/39adf7b6-0f6b-44db-ac8b-f6f1dbbc4aea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x02924db9b4bca7df9dcaca8a7b28c2363992dfb6887d6fd28a047f597a6c3ee8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:01:46Z), 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/USA770300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665566b187ed23e83da150d854532c56f0bdb89c85a63277af28eca0bbfd5c94. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USY1R1022901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32695f7ae99a878bfdb14bf762e408d4fc9dbdf6deb24e4d5b982d17885eb461. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:16:33Z), 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/USY1R1335409.
Once Around (Expanded 10th Anniversary Edition)
The Swallows of London Town - Live at Amoeba
The Sun in California - Live at Eddie's Attic
Sentimental Lady - Live at Eddie's Attic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f3172f18933cc10a61cb6d1eb3510cf48067c1762f0fa221e87b4d6cdc2811. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USY1R2411302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef48d6fed6aa90f60492aa0adfa3ab04b2243d38a9b1ff98a64ef411d9765bd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/AUWA01300250.