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 0x5aa1a88b59daa2120f0ba07ae2cc992b3608e1439164a87b5603a79123d4ee1a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e748c296-1813-4aa5-b867-b1c6c6ba4b2d.json and https://artists.proofprofile.net/proofs/artist/e748c296-1813-4aa5-b867-b1c6c6ba4b2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prince of masquerade (feat. HATSUNE MIKU)
Hanamizuki (feat. Yo Hitoto & HATSUNE MIKU) [Cover]
可愛くてごめん (feat. HoneyWorks & かぴ) [Cover] [aqua mix]
Kawaikutegomen (feat. HoneyWorks & capi) [Cover] [aqua mix]
I'M YOUR SUNSHINE!! (feat. HATSUNE MIKU)
HIRI HIRI HEARTBEAT (feat. HATSUNE MIKU)
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 0xd2afa0aea2d4985eef3cb939fab43d8f190c523784fc36547e376669ffd96b53. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPW462477044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7f85bf2ab1b1cbc90ccc4eb1636236f3719083f9d09e43795bd42db956d8f4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:47:57Z), 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/JPW462503687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba431645a9b8ee5e4ad2b8fb42ad73c9e473b274614bdf1d4e8ce82f8a8643d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPW462508022.
VOICE OF LOVE (feat. HATSUNE MIKU) [Remix]
I'M YOUR SUNSHINE!! (feat. HATSUNE MIKU) [Remix]
DRESS UP, MAKE UP, CHEER UP!! (feat. 初音ミク)
DRESS UP, MAKE UP, CHEER UP!! (feat. HATSUNE MIKU)
月曜日がやって来る！ヤダ！ヤダ！ヤダ！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3774bd24c6e99049caea44f8ce35aec23d435b851d89e9fab0e69a2e40408b. 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/JPW462550316.