Ultra Blue
type: MusicGroup
description: 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
popularity: 6
followers: 74
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee33401ec653d61264ff93b58a4191dde1ff7ef16b41ddc9f78eca225a878480
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d95c29d3-7cf3-4468-a228-07ab77bb3421.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d95c29d3-7cf3-4468-a228-07ab77bb3421.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d95c29d3-7cf3-4468-a228-07ab77bb3421
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee33401ec653d61264ff93b58a4191dde1ff7ef16b41ddc9f78eca225a878480","name":"Ultra Blue","registered_at":"2026-06-21T04:02:22Z","symbol":"NIM1814009","token_address":"0xc7a1281b2b24be57dc1cfa0685d0526304a61bbd","type":"artist","uuid":"d95c29d3-7cf3-4468-a228-07ab77bb3421"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xee33401ec653d61264ff93b58a4191dde1ff7ef16b41ddc9f78eca225a878480","name":"Ultra Blue","registered_at":"2026-06-21T04:02:22Z","symbol":"NIM1814009","token_address":"0xc7a1281b2b24be57dc1cfa0685d0526304a61bbd","type":"artist","uuid":"d95c29d3-7cf3-4468-a228-07ab77bb3421"}
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  type: MusicAlbum
  date published: 2004-01-01
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  type: MusicAlbum
  date published: 2012-10-22
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  type: MusicAlbum
  date published: 2014-10-31
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  type: MusicAlbum
  date published: 2015-10-20
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  type: MusicAlbum
  date published: 2017-04-21