1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23ef3e821a9cdc5ff92013bccf9decd1193c3f4a5b77267eb5b9a97bae60f66. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7121a64-7e26-462c-a72d-63f00e57bc34.json and https://artists.proofprofile.net/proofs/artist/c7121a64-7e26-462c-a72d-63f00e57bc34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
夢待列車 - NHK「みんなのうた」バージョン
Samsara (TV Program "The Nonfiction" ED Theme)
Inori Uta - Toutoganashi - - Hyoujungo Ver.
あなたに逢えてよかった - カラオケ
Yumemachi Ressha - NHK "Minna no Uta" Version
サヨナラよりも伝えたかったこと
城南海デビュー10周年記念ベスト盤「ウタツムギ」
西郷どん紀行～奄美大島・沖永良部島編～
Cosmic Dance - Encounter In Space Dance Mix
COSMIC DANCE - “Encounter in Space" Dance MIX
Reflection - From "Mulan"/Japanese Version
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e1402fc4d3c8be22025e1c50482fc63e1712f4284677238b288e1954f320ef. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/795aG6PJ3rxk3One5rbdXa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/795aG6PJ3rxk3One5rbdXa.