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 0x36660ad01540f3487d38bd5ca505c9ffb1779eccc3c5ffa01d557ddfa614fe7b. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06064d30-36a3-4390-b629-36b7461967ef.json and https://artists.proofprofile.net/proofs/artist/06064d30-36a3-4390-b629-36b7461967ef.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 0x01a51d98b842f0a3d7f674bdfe651c7c4f1c0396f8687437c62c51c2c2fa24e3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR59R2194529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9efa4c218d01af6f1abee84dc0fdaa8df6d7f4cf3578eff3464c18d62b92031. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR96X2151129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4d6e8860184df8e1f63876b7d4d93b243bdccdf42ce418c96205b2f3d6eb0e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR96X2221057.
Bạch Nguyệt Quang Và Nốt Chu Sa (SpeedUp)
Bạch Nguyệt Quang Và Nốt Chu Sa (Spedup)
Bạch Nguyệt Quang Và Nốt Chu Sa - Spedup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ad224c3ba409e46ff0473c4caf795ec6fe2bcef150849051b690968ebb3a45. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZYHM2404833.
Bạch Nguyệt Quang Và Nốt Chu Sa (Remix & Lofi)
Bạch Nguyệt Quang Và Nốt Chu Sa (MeMe Remix)
Khi Gặp Lại Chỉ Là Người Lạ (Remix & Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137d689994bc9a447424066077ae39f2258fc4a68e9c61120107e42a7e8870d0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJV2576967.