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 0x253981aea04f82cdf72dd76b01b99e770c6218bdeaf573ccc6c74f95692b00f4. 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/5dc76efe-559f-4813-a8ed-84bd5412eb5a.json and https://artists.proofprofile.net/proofs/artist/5dc76efe-559f-4813-a8ed-84bd5412eb5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アイネ･クライネ･ナハトムジーク 第一楽章
帝国のマーチ(ダース･ベイダーのテーマ)
アップ･オン･ア･ムーンヒル ～桂林を下って月の丘に昇る～
UP ON A MOONHILL～KEIRINWOKUDATTETSUKINOOKANINOBORU～
ヴィーニョ･ヴェルデとフラミンゴ
サヨナラのおまじない - オリジナルカラオケ
ピタゴラスイッチ オープニングテーマ
ピタゴラスイッチ オープニングテーマ - Live
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58d56351fca1c4eeb057e457f0dc47944c4830abe39bbcceed88d77bc8d5fa5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPI00904480.
The Imperial March (Darth Vader's Theme)
ロック・アラウンド・ザ・クロック
バック・トゥ・ザ・フューチャー
KURICORDER QUARTET ON AIR NHK RECORDINGS
お散歩メドレー本日休講～下町をぶらり