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 0xb91c51330ba42fb37ed56b10e6aea20fdb7d628d9a4c369361cfa53f9b149796. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d8e2b52-4e34-4340-ac00-d1474805a510.json and https://artists.proofprofile.net/proofs/artist/0d8e2b52-4e34-4340-ac00-d1474805a510.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
聯合軍 (feat. 李宜柏PAULYBLEE, 成晞 CHANCE, $$uperCandy, P-rabbit, HighBoy & CuzyBoii)
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 0x80542da9832b0d96bbf09c5432276e6943336ea60997ff8adf7064ed31585d04. 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/TWU712203726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80542da9832b0d96bbf09c5432276e6943336ea60997ff8adf7064ed31585d04. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWU712203726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad73af9b430bca91dbe110f7b7bff26c367b752a5e8235c125bf34a8f0f31204. 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/TWU712103917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fa0762bf377dd0a72554db07d4fb99995c09174729cb8b728a8e3a7bcc12d0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:29:26Z), 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/TWU712300105.