UU
type: MusicGroup
description: UU or uu may refer to: Businesses United Utilities (LSE stock symbol UU) Air Austral (IATA airline code UU) Language "uu", an old way of spelling the letter "w" in certain Germanic languages, inc
popularity: 2
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c27e6b210841643b9b54eba22f8afb0e38a185b3f5141a5d966999e83b94312
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0d3c51c-c091-46a1-9b17-40ef3e7d8bae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0d3c51c-c091-46a1-9b17-40ef3e7d8bae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0d3c51c-c091-46a1-9b17-40ef3e7d8bae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c27e6b210841643b9b54eba22f8afb0e38a185b3f5141a5d966999e83b94312. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0d3c51c-c091-46a1-9b17-40ef3e7d8bae.json and https://artists.proofprofile.net/proofs/artist/a0d3c51c-c091-46a1-9b17-40ef3e7d8bae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
album: Every Now and Then
  type: MusicAlbum
  date published: 2021-04-19
album: Please God, Help Me
  type: MusicAlbum
  date published: 2022-03-25
album: Lost In Reverie
  type: MusicAlbum
  date published: 2022-08-26
album: Like You Were Beside Me
  type: MusicAlbum
  date published: 2022-09-30
album: Yuu
  type: MusicAlbum
  date published: 2023-11-25