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 0x2a2054de1c7dac40c13e6509dfbb363f4320769965e1ddc886a4381100734d56. 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/f576a873-72c7-4972-94b8-2b5d237a8b94.json and https://artists.proofprofile.net/proofs/artist/f576a873-72c7-4972-94b8-2b5d237a8b94.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 → 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 0xe369c60a0ea3ea0075015bdb0ef574fa8d9e076f052196a0e22bdbe01ce1721e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:24:09Z), 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/UKXN22529912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25664480c0ae25d82276cf3cee370f0261153202c6bee86f7762637581877bbf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKXN22529916.
ใจเป็นนายกายเป็นบ่าว
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbd6e567b76213c20cc8eb0e08048b795debcfa14228f82d70d2497f8332143. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/UKXN22529917.
ช่วยพาฉันผ่านเวลา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c856ba6c3403d3804fa6d2ba7f3806260ec9be1253414b7944c39d4be7d8bf. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:18:40Z), 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/UKXN22529918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62834ad7be8fa1c8fddf6583172e647c361406a876236a468146d03cfc78e58. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/UKXN22529919.