Ultra Blue (stylized in all caps) is the sixth studio album by Japanese and American singer Hikaru Utada, released on June 14, 2006, by Eastworld. It is their first original Japanese language album in
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 0xee33401ec653d61264ff93b58a4191dde1ff7ef16b41ddc9f78eca225a878480. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d95c29d3-7cf3-4468-a228-07ab77bb3421.json and https://artists.proofprofile.net/proofs/artist/d95c29d3-7cf3-4468-a228-07ab77bb3421.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).