Switch/逆先夏目(CV.野島健児)、青葉つむぎ(CV.石川界人)、春川宙(CV.山本和臣)
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 0xcd3e5f48c784cec1329c81dec6f12272842a2f819c319b4edfd2056ae97034c6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94d39be6-9969-4e2a-8d9a-e15997171a2c.json and https://artists.proofprofile.net/proofs/artist/94d39be6-9969-4e2a-8d9a-e15997171a2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
あんさんぶるスターズ！！ Switch「オモイノカケラ」 (Game Edit)
あんさんぶるスターズ！ アルバムシリーズ Switch
ENSEMBLE STARS! ALBUM SERIES PRESENT-Switch-
ENSEMBLE STARS!! ES idol song season1 Switch
あんさんぶるスターズ！！ Switch「Brilliant Smile」 (Game Edit)
Switch「Brilliant Smile」ENSEMBLE STARS!! ES idol song season2
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 0xd10b126196aa18f10d186f1e0d9ccbc59c875f1163a57aeb935d157295ab5df0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPD642200102.
Switch「Brilliant Smile」あんさんぶるスターズ！！ ESアイドルソング season2
あんさんぶるスターズ！！ Switch「Romancing Cruise」 (Game Edit)
Switch「Romancing Cruise」ENSEMBLE STARS‼ES idol song season3
Switch「Romancing Cruise」あんさんぶるスターズ！！ ESアイドルソング season3
あんさんぶるスターズ！！ Switch「Chocola-Tic After School」 (Game Edit)
あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 Switch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603f43f67d212962af6fe22bd8d45002b9c829663bc1105c45226195ebc0974b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPD642300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22ac2ec4889694368965c9d2988a9a74e7cac7333a77df9fd5c04578e392c6e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPD642300824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c9a4dd8e1faee814887a70b2937e17500c2d2c8a74a573ce35fb0d7f000036. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPD642300825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc402303d7ca0eeb244dcd82941859ed8b9f59683db6da35b75fb91ae9778f25a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642300827.