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 0x4463d9723323a8deba023c6f899b20352ea9c53e74a8248f389f3b04e381cefa. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08ebf01d-fdce-4a5d-85a8-b05787f9ae4a.json and https://artists.proofprofile.net/proofs/artist/08ebf01d-fdce-4a5d-85a8-b05787f9ae4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
สาวนคร (ศรีเธอมราช)
ไม่อยากให้เธอเป็นโควิด
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 0x1a58e00ce1020e5a75c61be26acd30f84adcb581d1d5ea11c84263dd7f0462b0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/THSOH2100824.
ไข่นุ้ยอยู่โบร๊ะ
อีสาวเห้อ Feat. ยาวีแมน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648d847f1597fb726b464aecea4d3ed529d564def44d389dfbad056721c5e914. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/THSOH2104131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444651902a211d502f679d6affe10154223f570de8af0071de817d2ba3c125c9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/THSOH2200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3e3cd0d74046418ab10348f8fc6ba61eb7be83ca2cfb6f240e103c01fd3695. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/THSOH2200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebab0b89aed749debc387fc3b4cbbd64b5f6fcdcea5bbe3b97d55e8c0e54cb4b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/THSOH2200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cdab952e2c6e8701d4743cee009ec4e10bc073eb8291dc00dd17ab8f7f5f78. 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/THSOH2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2de1f43c5ca90aa5ed4fd0bc0e986ae5c6516ce265c1c1b0ef03bb089dccb74. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/THSOH2200128.