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 0x5793b4720fad3e82ff9f297ad10c6c85ee3f0f6b06c3680a3d7b69ebbd4c04ca. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c07f8c5-b42d-42dd-b635-a6b6daa22342.json and https://artists.proofprofile.net/proofs/artist/9c07f8c5-b42d-42dd-b635-a6b6daa22342.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 0x6a3293f2a3c1d16771498e870e88b9b942b7c95d03592f8c0bdb99262d4aa554. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:09:36Z), 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/TCAGN2260464.
พิพิธภัณฑ์ความทรงจำครั้งสุดท้าย (Gallary)
พิพิธภัณฑ์ความทรงจำครั้งสุดท้าย (Gallery) | Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074b541dd4aaa59d5e04a6f01acdf6d166baff87b576f7f0fc073629724c71e0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:51:01Z), 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/TCAJK2541133.