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 0x08c45dcc5b9c8b227a28d1bfa6c455d96dacd8d81f46a732112f67c88950ddbb. 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/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.json and https://artists.proofprofile.net/proofs/artist/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh) [Remix]
Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh)
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 0xd41243962325a177ac3e8644abbb58cc2d74c4f9b9b2db0c9c172387fd95701d. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/VNA0M1907713.
Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu
Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu | Zang Remix
Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17db032b413668d5b113f1ab8a54c683af5b17f3628009cbf490cb1d95a5389. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US38Y2507339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473ee02831672a472d49eec2bc6529fd86f120bd9ff31db39989e94f5c3604fc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM7282554452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b7867240f29abcee655e36862351e333bf84ef3c277ed3851616451c7c4094. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DGA062428953.