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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b7c6a03671494c6a91ee95e62706de1783fea8dd38864fd5ae27e4528ed7d8. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a2d66cb-3578-4957-80bf-e8b89e4fab1e.json and https://artists.proofprofile.net/proofs/artist/5a2d66cb-3578-4957-80bf-e8b89e4fab1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kawaikutegomen (feat. HoneyWorks & capi) [Kawaiikute Gomen Cover Vol.1]
可愛くてごめん (feat. HoneyWorks, かぴ, HARUKA & AKITO) [可愛くてごめん Cover Vol.6]
Kawaikutegomen (feat. HoneyWorks & capi) [Kawaiikute Gomen Cover Vol.2]
Kawaikutegomen (feat. HoneyWorks, capi & HARUKA) [Kawaiikute Gomen Cover Vol.3]
Kawaikutegomen (feat. HoneyWorks, capi, HARUKA & AKITO) [Kawaiikute Gomen Cover Vol.6]
可愛くてごめん (feat. HoneyWorks, かぴ & HARUKA) [可愛くてごめん Cover Vol.4]
Kawaikutegomen (feat. HoneyWorks, capi & HARUKA) [Kawaiikute Gomen Cover Vol.4]
可愛くてごめん (feat. HoneyWorks, かぴ, HARUKA & AKITO) [可愛くてごめん Cover Vol.5]
Kawaikutegomen (feat. HoneyWorks, capi, HARUKA & AKITO) [Kawaiikute Gomen Cover Vol.5]
可愛くてごめん (feat. HoneyWorks, かぴ, HARUKA & AKITO) [可愛くてごめん Cover Vol.7]
Kawaikutegomen (feat. HoneyWorks, capi, HARUKA & AKITO) [Kawaiikute Gomen Cover Vol.7]
Kawaikutegomen (feat. HoneyWorks & capi) [Kawaiikute Gomen Cover Vol.8]
可愛くてごめん (feat. HoneyWorks & かぴ) [可愛くてごめん Cover Vol.8]
Kawaikutegomen (feat. HoneyWorks, capi & Una Otomachi) [Kawaiikute Gomen Cover Vol.10]
可愛くてごめん (feat. HoneyWorks, かぴ & 音街ウナ) [可愛くてごめん Cover Vol.9]
Kawaikutegomen (feat. HoneyWorks, capi & Una Otomachi) [Kawaiikute Gomen Cover Vol.9]
Kawaikutegomen (feat. HoneyWorks, capi & Una Otomachi) [Kawaiikute Gomen Cover Vol.11]
Tear drops are falling under the dry sky
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf348c722f646455b4624ebf540fdbaa2e73b84a246297f5d12875cdbaf9a5a3b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCJPD2575618.
I love RAMEN!! (feat. SANDRA, JESSICA & YUINA)
Endless Work (feat. JESSICA, MICHELLE, SANDRA & SARAH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2712de62425723225826addf549f94589f126740587ffe1bcec8d539c37b6b2e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCJPD2599947.
終わらない仕事 (feat. JESSICA, MICHELLE, SANDRA & SARAH)
Little by Little (feat. TAKU, SHION, NAOKI & AKITO)