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 0xd3785cbf6490e0d7a9b57fec3c8b6531f938b60b824697120f38c76fa4562558. 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/93d57904-026c-4880-acff-f77cd6054752.json and https://artists.proofprofile.net/proofs/artist/93d57904-026c-4880-acff-f77cd6054752.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
ผู้หญิงเอาแต่ใจ
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 0xe958b5d620e448db0ddd39b6acb629a954aa0ec70a6f367201b120061d6eb061. 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/THG010730042 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246b0fa913535efb63061bd04fa2cffe0909b7e1e391b0ee33b06f9b98adaa1e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010730045 — a six-check JSON result.
เพลงประกอบภาพยนตร์ สี่แพร่ง
กลัว (เพลงประกอบภาพยนตร์ "สี่แพร่ง")
เวลาไม่มีความหมายอีกต่อไป
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc909bea92e5816523d581ca97a3af4ce002cb6c191adac3e7f9a18b648664234. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010900018 — a six-check JSON result.
คนที่ฆ่าฉัน (เพลงประกอบภาพยนตร์ "5 แพร่ง")
คนที่ฆ่าฉัน - เพลงประกอบภาพยนตร์ "5 แพร่ง"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a82a55f3b0db3f82a874fa75803cab41370b6ad92b360c389b9530a58f1fb2f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010901013 — a six-check JSON result.
Chinese Traditional Music (Electronic Version)
The Cliffs of Moher (Traditional Irish Music)
A Child of Dreamland (Electronic Version)
King of the Fairies (Electronic Version)
Celtic Music Collection (Electronic Version)
The Best of Celtic Music (Electronic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff377372cace9f48aea1e3095a21cb2ab8cb89af613807313198dd4fcdf88d6d. 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/FR2X42537301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80b1d5b9e6bae225e11588a7ac618743575b2a612082098901cf129358bc6ca. 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/FR2X42537306 — a six-check JSON result.