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 0x18b1598ebcc875488bc95c6c6214da328470fbb79e0d623ad6d5c698f503c75f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71b82595-57a8-4001-8279-10764d2ed6ea.json and https://artists.proofprofile.net/proofs/artist/71b82595-57a8-4001-8279-10764d2ed6ea.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 0x25105a5619481c8d661312a4e04bd1e8052400cd2e0980790d28221e143fe38c. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:05:47Z), 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/QM6P42426334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a3f9c83c5a7e9a055060d94fa098fe335cef1c0af6c7c1ca319559c9e6f189. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6P42426344.
"ไม่เคยเปลี่ยน" ประกอบภาพยนตร์ ซิงเกิลเลดี้ เพราะเคยมีแฟน
ไม่เคยเปลี่ยน (OST. ซิงเกิลเลดี้ เพราะเคยมีแฟน)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65066409ec1eb4d2a9c809a892d095b629e08c8dd43334108200ca2214bb89c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QM6P41470226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0040462afa3c6619a078ff755a0ed9e968165db8f00d25415ef2a0c98ceb2d80. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM6P42426268.