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 0x89ca89b27842a4464fd0b1e0f53660e5dfb48efe5c4f8a10723264f9023885f2. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8bccc18-0730-4c60-a3cb-4c5bbbbc1a74.json and https://artists.proofprofile.net/proofs/artist/f8bccc18-0730-4c60-a3cb-4c5bbbbc1a74.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Confessions in the Moonlight (Live at Plaza north hall, saitama, 2018)
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 0xd403118e741a8def37e857246166dc07c0c7c479f9ee202b86f997f7aa29ae27. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCJPI1976663 — a six-check JSON result.
ENVELOPPEE DE TENDRESSE ~Piano Melodies from Kiki's Delivery Service and Other Anime Films~
～そして伝説へ…ピアノで奏でるゲーム音楽②～
～そして伝説へ…ピアノで奏でるゲーム音楽①～
Ao to Natsu~Piano Echoes of Mrs. GREEN APPLE's Music
Lilac~Piano Echoes of Mrs. GREEN APPLE's Music2
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ I')
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅠ』の名曲より）
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ II')
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅡ』の名曲より）
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅢ』の名曲より１）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e449f9490a3997984fe66b32ccaaa8419d939b419144a110a693970a61a7c8d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCJPE2539973 — a six-check JSON result.
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅢ』の名曲より２）
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ III 2)
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ III 1)
Piano Music from Japanese Animated Films Vol.1
Piano Music from Japanese Animated Films Vol.2
Piano Collection: The World of Animation - Whispers of the Wind1
Piano Collection: The World of Animation - Whispers of the Wind2
Piano Music from Japanese Animated Films Vol.3
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ IV1)
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅣ』の名曲より１）
冒険のはじまり 〜ピアノが奏でる伝説〜（RPG『DQⅣ』の名曲より２）
The Beginning of an Adventure - Legendary Piano Melodies (From RPG 'DQ IV2)
Piano Collection: The World of Animation - Spirits and Dreams1