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 0xc56e8229941da5773a0d387418a865ce13468f4adc1ba39e48dfd419e84a66e1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bf93583-546d-4104-9e1f-f1aa021f5dff.json and https://artists.proofprofile.net/proofs/artist/3bf93583-546d-4104-9e1f-f1aa021f5dff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ『ガールズ&パンツァー』オリジナル・サウンド・トラック
ブリティッシュ・グレナディアーズ
学園艦は今日も勇壮に海原を進みます!
戦車の知識では誰にも負けません!
カチューシャ Sung by カチューシャ&ノンナ
こんな普通の学園生活って素敵です!
横暴は生徒会に与えられた正当な権利です!
戦車道とは女子としての道を極めることでもあります!
生徒会、悲壮な決意とともに進みます!
戦車を可愛くデコレーションしちゃいます!
スポーツニュースは今日も戦車道を報じています!
栄光の戦車道全国大会始まります!
TVアニメ『荒野のコトブキ飛行隊』オリジナル サウンドトラック
ガールズ&パンツァーのための狂詩曲
OVA『ガールズ&パンツァー これが本当のアンツィオ戦です!』オリジナル・サウンドトラック
秋山優花里のアンツィオ校潜入大作戦です!
これが本当のアンツィオ戦です!メドレー1 (模擬戦〜試合開始)
これが本当のアンツィオ戦です!メドレー2 (マカロニ作戦〜試合終了)
ガールズ&パンツァー 最終章 Episode1-3 オリジナルサウンドトラック
最終章・戦車道行進曲!パンツァーフォー!
パンの耳を揚げたのは美味しいんです!
ボコミュージアムの閉園の時間がせまっています!
La Chanson de l'oignon Sung by BC自由学園 戦車道チーム
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 0xffc1335d70b3913e8b05b611e0d0f6a991fe98ba34e0519fb10ec3c78b64d1d6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4eZEOg0G6IIFsvCv515IXx.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/4eZEOg0G6IIFsvCv515IXx.
TVアニメ『TARI TARI』ピアノアレンジアルバム presented by L SCORE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4dea8d78e430078b52e71b2e6881797a7822e54a0939561ded56e0c226b073. 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/6Asw24CTsHyDt1SxFAhN6P.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/6Asw24CTsHyDt1SxFAhN6P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743f2daa332540a5d9758d914145db813ba78b6a7e999fecc5f4d40588b1b783. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3w3ElHTIFUiakkIie2vjdZ.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/3w3ElHTIFUiakkIie2vjdZ.