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 0xe3096d17b8725f1dab635110d202fa7e85db8356a38350f1fa97fc495b03bf95. 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/61ec40a2-f022-40f4-a7b1-a34bbf2187d5.json and https://artists.proofprofile.net/proofs/artist/61ec40a2-f022-40f4-a7b1-a34bbf2187d5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
ก็รู้ว่าเธอไปกับเขา
เธอไปกับเขาแล้วไง
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 0x67179007774f791438933ae43a2baa6489c36a399450e76a50de41ae999978f4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGB2288004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3768cf7e0fe144cdf26e5b1d7dc2141c58aeb103fa8670e7b5ef1d957d2db326. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGE2216621 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9389bceeb2d5c22b3c848d7187fb41e0a0bc93eb46a913be1cc9567863c7d3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGO2277946 — a six-check JSON result.
ยังคิดถึงเพียงแต่เธอ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b1f66053c84bd68eaa0a6e1b14f6db9d8cbc578d2ed067c1f6170fb548f94f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGZ2357759 — a six-check JSON result.
ชอบเธอแล้วมันผิดมั้ย
ชอบเธอแล้วมันผิดมั้ย (Speed Up)
รักเธอแต่ไม่กล้าบอก
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f249076469dfff655eacfaf99d2a35f6de5b4e497b68c56d9fae947c96ff0df. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2419066 — a six-check JSON result.
รักเธอแต่ไม่กล้าบอก (Speed Up)
มาเป็นแฟนฉันได้มั้ย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7f4cf44aaeb158476b14e33a3a2e3af2e4b800ddd613352c98f3c2f51f71e2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072430826 — a six-check JSON result.
มาเป็นแฟนฉันได้มั้ย (Speed Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a72d014d67845017402a39434e09368e526c661c60e42d1b25938cc804dcfc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2513603 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feaafdaf8598ca94bfeb2ed4d2c48bd6005684def1a958dc3b60c210ab8187f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452597003 — a six-check JSON result.