Eden/乱 凪砂(CV.諏訪部順一)、巴 日和(CV.花江夏樹)、七種 茨(CV.逢坂良太)、漣 ジュン(CV.内田雄馬)
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 0x1f4fd9003d932e678d46f99033b84bbc5279a24d04b9c84960125a15b0a704d8. 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/ec4f5532-f158-40d4-9a2f-f3f9529a7581.json and https://artists.proofprofile.net/proofs/artist/ec4f5532-f158-40d4-9a2f-f3f9529a7581.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ENSEMBLE STARS! ALBUM SERIES PRESENT-Eden-
あんさんぶるスターズ！アルバムシリーズ Eden
あんさんぶるスターズ！！ Eden「楽園追放 -Faith Conquest-」 (Game Edit)
ENSEMBLE STARS!! ES idol song season1 Eden
Eden「EXCEED」あんさんぶるスターズ！！ ESアイドルソング season2
Eden「EXCEED」ENSEMBLE STARS!! ES idol song season2
あんさんぶるスターズ！！ Eden「Absolute Perfection」 (Game Edit)
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 0xb8649805520f5bce8d5e5cd6dbf89a8e3b2cf6c7a6814df8294e4e92f3666db4. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642400020.
あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 Eden
ENSEMBLE STARS!! ALBUM SERIES - TRIP Eden