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 0x715115ccae15695d1f67cfffb6b67ebe248776c2717ccba06f579f630397a000. 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/b7450e3a-e915-474c-b9f1-0c015826f8fa.json and https://artists.proofprofile.net/proofs/artist/b7450e3a-e915-474c-b9f1-0c015826f8fa.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 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 0x7f97c69f26289c2d1bbab9bd615bb6441d4567830914ac161fa45571c60a47b2. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/THG010800852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadb4eb3007a65ede7360d66297a9167e12875a0f58b8e22383b699f6ac8cc03. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/THG010800844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb51a1de50a4df4640d46091561f8c8c83bd261473e34ddce03a517fec17d23. 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/THG010801895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b45fa3c469f2d9fc515fd65ef79f064bb7e60756939e8f623d94d8d10c769d. 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/THG010801897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d11f989815db2d0ce307be13cbe8292f5870010ed273e566b22835e44f49dfd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/THG010801899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff354b0d7a2678a74b5f80bf110c6bb393961c797d97c0c421c44b8de3e1cf5. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/THG010802636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdad8322116c7b61050528f9e7f741cefce90c76248f9dfae3295dd7b3326e92. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/THG010802641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7e8df8de5dc93317be6adf9b1d1e4be3e4cab3e5b58a92eca0f129fc22f5aa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/THG010802645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034d9c85761f45567f9b290b3714789b26c9e974e0ebb09f067b462817b4819a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/THG010802646.
เพลงประกอบละคร เงามรณะ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a1d53ae912d030353ba0f47326941dc9465d8747f02c6bf0726b6e3b8e6b88. 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/THG010817245.
อยากให้เหมือนเดิม
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bc186da62d1b9bee7f25cff24a231c4e07806af6edd0505afd3eae3bacd6cf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/THG010817249.
ถ้าโลกนี้ไม่มีผู้หญิง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ab20690d94fcc79566cd9bec2ef1c62ef8391390dae897ae3517c2da30847. 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/THG010818342.
อดทนไว้ (feat. อ๊อฟ ปองศักดิ์)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e3db45866790e5c79bb82b273fee3fd0729dba509b06cd906ea88895b2840. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/THG010805143.