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 0x8639217e0e75bac8fe0c02d4e484a608ea1dc0570aa73fa39640705a4e7acda6. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efa35098-3479-4d2d-b958-eff9b6e369e8.json and https://artists.proofprofile.net/proofs/artist/efa35098-3479-4d2d-b958-eff9b6e369e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
時光夢花 (影視劇《白日夢我》時光主題曲)
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 0x6697470622f5df9d2c6a56d94d5962dbc024fed13730f9c8cda4f3af6257f27d. 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/CNZ842300174.
白日夢我 (影視劇《白日夢我》青春主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6766862549bb3e25f8d92c4796642bc8ae9824a03e5b70e9b8c0ca9178ecfde. 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/CNZ842300176.
倦鳥歸林 (影視劇《白日夢我》情感主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c925db8f4643156589361cf3a97d33f676dcbfa8b4b5290e4f421df7b32cc0. 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/CNZ842300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55767eede33062ee52463968d8b853af7602e5a54004df159e62fa363fd45d7a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CNZ842300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18cc948d10f0ffc68cc65a8decc9573a6b14265a6f73ac9299c4066a99369af. 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/CNZ842300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cbfb2dc68358cc674a536a8ff6ab59bf1a47d6a6fd970a69b2207f1cbba27c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CNZ842300173.