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 0x88d308ed46e28f3fee7edf2da7e08c28670b9e95607cdce21178bc0241a2d52c. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f73a9a8e-9ed6-4c5c-ac13-a4d43fad4271.json and https://artists.proofprofile.net/proofs/artist/f73a9a8e-9ed6-4c5c-ac13-a4d43fad4271.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hạnh Phúc Chính Là Em (Quyền Pink Remix)
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 0xde42fb6853ff9ca663e31c25163fa174a69d86ac09142273bcc346d1ed5641af. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM4TX2358963.
Liên Khúc Ngủ Ngon Nhé Vợ Tương Lai (Remix)
Ngủ Ngon Nhé Vợ Tương Lai Quyền Pink (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd447758c68b64330576358f6798f438363ecc3c4aa116f9ae1b4861b91515a2a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA072113573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd106d1457e3f0831b22bdb56c1aca7a192c98436cb1ca78095ac001f32a1ca28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA072113578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eca9e4bfbcb8e8d09ca751d941ed0658e2fb2a3e9a4ac7a81fe69a8b0a2cebf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR96X2126305.