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 0x3a396cc0ee1ca54340324f0f5ed4a272be27b36e3c41e01097e6288f7dd21ecc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75e94f9e-1b41-468f-a99b-7ad18cec7563.json and https://artists.proofprofile.net/proofs/artist/75e94f9e-1b41-468f-a99b-7ad18cec7563.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
温泉むすめコンプリートアルバム Vol.1〜3
星に集いし乙女の物語-プロローグ-
オーバーフロー！ - かみのやま 庵(CV:進藤あまね)ver.
オーバーフロー！ - 玉名満美(CV:青木陽菜)ver.
オーバーフロー！ - 福地珊瑚(CV:反田葉月)ver.
オーバーフロー！ - 稲取ひなめ(CV:鈴木杏奈)ver.
オーバーフロー！ - 鹿教湯万美(CV:瀬戸桃子)ver.
ユメハナビ - かみのやま 庵(CV:進藤あまね)ver.
Overflow! - KAMINOYAMA AN CV SHINDO AMANE Version
Overflow! - TAMANA MAMI CV AOKI HINA Version
Overflow! - FUKUJI SANGO TANDA HAZUKI Version
Overflow! - INATORI HINAME CV SUZUKI ANNA Version
Overflow! - BESSHO AISE CV TATEISHI RIN Version
Overflow! - KAKEYU BANBI CV SETO MOMOKO Version
Yumehanabi - KAMINOYAMA AN CV SHINDO AMANE Version
Yumehanabi - TAMANA MAMI CV AOKI HINA Version
Yumehanabi - FUKUJI SANGO TANDA HAZUKI Version
Yumehanabi - INATORI HINAME CV SUZUKI ANNA Version
Yumehanabi - BESSHO AISE CV TATEISHI RIN Version
Yumehanabi - KAKEYU BANBI CV SETO MOMOKO Version