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 0x8f2ff7132ef499d7a25f3b89fab1e5d35ef1f2abadf82efc404a699e4121ff2c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/731a9a52-2eff-426f-a40a-80fff915339f.json and https://artists.proofprofile.net/proofs/artist/731a9a52-2eff-426f-a40a-80fff915339f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
เทพบุตรใจหมา (บักพาก)
You let me down (คึดนำ) [Feat.ท้าวคำสิงห์]
อีหยัง(Why) เซิ้ง|Music [Story จักรวาลไทบ้าน]
ถ่า (จากภาพยนตร์เรื่อง หลวงพี่กะอีปอบ)
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 0x40568eaf7549e39294951744d6ccd657c924cdd8b6cd6319007a127d59ebd027. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HKG732310370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1035e4e873c8b60820a17b8246511ddea8336e8c0bb89599c570e5e4315aae. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:55:34Z), 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/FRX452365092.