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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87961054b6dd7c38ae117f17a7accc3fc9688320199e40fad2a34dc1392be498. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a9b2ca2-08b3-4125-b14b-da44829066ae.json and https://artists.proofprofile.net/proofs/artist/2a9b2ca2-08b3-4125-b14b-da44829066ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Em không chờ, không cần ai biết (Remastered Version)
Em không chờ, không cần ai biết - Remastered Version
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3885cd35132129b0370df39754edd219f45c873bd31e50fe4697b84c2a5ce7e8. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZWFP2563950.
Boy, don’t chase me (Remastered Version)
Tell Me You’re Mine (Nói Với Em) [Remastered Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac06d046752d94d0e15fc9d33e24c9db586455ece581b81757d0980e1909dd23. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT3F52551285.
I Lead, I Shine (Em dẫn đầu) [Remastered Version]
Em Lead, You Follow (Remastered Version)
Em Lead, You Follow - Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ad5b6110e92ec321ec9b40c65e28b879a7e55095ad8aece40fd9636308e3dc. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QT6E52510117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54422aebf85ec33f01fe7502b9829e3c2bd6de91fa6e5ce3962b21dc4521ef0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QT6E92584926.
You Came Like a Dream (Em đến như mơ) [Remastered Version]
You Came Like a Dream (Em đến như mơ) - Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7061fb3df82a4b2dcfcf6d827e8d5d8993e9440958a17856bab1f1470611c3ec. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT6EE2500966.
Too Cute To Lose (Em Là Trò Chơi Ngọt) [Remastered Version]