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 0x86e7ea06f80ebb2b8460ba7a786d6bf855af80e282b63fbc0d0c07d1652c09e9. 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/bfa7bf05-5c5f-4ad7-b80a-069aff3f6c22.json and https://artists.proofprofile.net/proofs/artist/bfa7bf05-5c5f-4ad7-b80a-069aff3f6c22.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xbde5fdad2f57a7df63857f2b5b89c23e050e6250b1870ef9646de0ded9071ea3. 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/SE5752322863 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4414ab8b8b617e9a1373f8fe929b34bfd415469689788a90bc8679bbb8a8a856. 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/SE6HN2339575 — a six-check JSON result.
คล้ายดวงอาทิตย์
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92172d40695e71f157ecf749a118820e728de269731747630f0a93aad649a256. 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/SE6HN2306421 — a six-check JSON result.
เธอสอนให้ฉันรักตัวเอง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780cea000c6779e154c5dcdddd3fb4946e7d0811287b28d60239701f49cd23b5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/SE6QE2304069 — a six-check JSON result.
ฉันหัวเราะเสียงดังในวันที่เขาทิ้งเธอไป
คริสต์มาสนี้ไม่เหมือนเก่า
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07afa577cc9702369d98041439eabc623ab6424c32e57e6d7c556e8cad9d9788. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2418897 — a six-check JSON result.
พี่มารักหนูเถอะนะ
มาเป็นแฟนพี่ดีมั้ยน้อง
น่าเสียดายปีนี้ไม่มีเธอ (Demo)
น่าเสียดายปีนี้ไม่มีเธอ - Demo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58871d47cc07a7a5ba53aab59708ababdfaf588c6d6d9c2269e15b05f939a0c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6XW2403969 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5115f26a6594c0f1a622c684e20e7ced46e66e48ddfc27903e0e5c3e1a330eb8. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/SE6XY2534124 — a six-check JSON result.
เพื่อนกันคงเป็นไม่ไหว