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 0xf9c13885ac3ea00e35b753cd3e0aae5d71cf0fac761abcbc69179305c23e8bee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad7e40c0-10cc-4d75-b1aa-179b53babad7.json and https://artists.proofprofile.net/proofs/artist/ad7e40c0-10cc-4d75-b1aa-179b53babad7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
อยากกลับไปเป็นเพื่อนเธอ (Unfriended Request)
รักเธอมากกว่าใครนะ (Love you more)
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 0xc22c6582aedc688adfa8986207e1989ed034a9954d0f558bf0443987a9c00eaa. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:05:21Z), 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/THRSP1229498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22c6582aedc688adfa8986207e1989ed034a9954d0f558bf0443987a9c00eaa. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/THRSP1229498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd658f71b667ef069decd4d5a816c33e590bdc70dfa8ade467ca8d53237e7dda8. 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/THRSP1230826.