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 0xacd52018b9ad44970cd8fb5b0ae1eb60404c1db1b4e79fcf69e02de549368493. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1d08b5e-e460-4025-95cd-87c1f3c45e3d.json and https://artists.proofprofile.net/proofs/artist/f1d08b5e-e460-4025-95cd-87c1f3c45e3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Across the Sky (เพลงจากละคร Across the Sky ลัดฟ้าล่าฝัน)
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 0x4ba52b6f6f84207195797ca5a91c33a62571a84f599b342b5d53d7a760b8705a. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/THG012300633.
Across the Sky (เพลงจากละคร "Across the Sky ลัดฟ้าล่าฝัน")
เพลงจากละคร Across the Sky ลัดฟ้าล่าฝัน (EP.2)
ถ้าเธอมองฟ้า (เพลงจากละคร "Across the Sky ลัดฟ้าล่าฝัน")
ถ้าเธอมองฟ้า - เพลงจากละคร "Across the Sky ลัดฟ้าล่าฝัน"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7bb0789861e34e92887c9f6a405c9e5cba5d5d0f8c039163be45a2ed44a35. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/THG012300914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776bb581a4922d4ea16fa9f35cea2fc872ec6eca82d690f21c3e89b55ecd4a2c. 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/THG012400039.