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 0x1c48a7c7a2f7eb66ad8aa51e92171c75df04eb915152e99bc41973ab24028719. 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/60a4c4f9-4d49-4333-99d8-75ede8365d6a.json and https://artists.proofprofile.net/proofs/artist/60a4c4f9-4d49-4333-99d8-75ede8365d6a.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 0x0aee4b6cc656a90757afcdd8d40110a981975402fac94d6a255cf0953c87f852. 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/DEN962400210.
Merry Christmas Mr. Lawrence (Arr. Tanzil for Piano & Strings)
Till Next Christmas (Version for Solo Piano)
Merry Christmas Mr. Lawrence (Arr. Tanzil for Solo Piano)
Asian Persuasion (Original Motion Picture Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06246f3e9f7cae2506ea25c982f60d204e5707c733d67757fc15b7fe4d0495fe. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:36Z), 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/QZZPP2502501.
Have Yourself A Merry Little Christmas (Performed on Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85e2ad8ca5477aac5ca33a1f9c9cf101484b7c510b8dbc1cdf580cc1bb96759. 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/DEN962501861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a41d7890282a329b45d23f03734e94c0b6613e17a17b02d969251af6f2c738f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBBC2400399.