Q4U
type: MusicGroup
genre: cold wave
genre: darkwave
genre: deathrock
genre: post-punk
popularity: 4
followers: 816
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x199a98b8be7605d21ffd018ef3ec4272380aaec8add950a6b1d2e638ff08fa39
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953973
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953973
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae17bc4-2c87-4d82-bd5d-666c1b83b098.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae17bc4-2c87-4d82-bd5d-666c1b83b098.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ae17bc4-2c87-4d82-bd5d-666c1b83b098
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:37:07Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199a98b8be7605d21ffd018ef3ec4272380aaec8add950a6b1d2e638ff08fa39. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ae17bc4-2c87-4d82-bd5d-666c1b83b098.json and https://artists.proofprofile.net/proofs/artist/2ae17bc4-2c87-4d82-bd5d-666c1b83b098.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
album: Best Of
  type: MusicAlbum
  date published: 2011-09-30
album: Best Of
  type: MusicAlbum
  date published: 2011-09-30
album: Q1 Deluxe Edition 1980-1983
  type: MusicAlbum
  date published: 2013-03-29
album: Q1 (Deluxe Edition 1980-1983)
  type: MusicAlbum
  date published: 2013-03-29
album: Q3
  type: MusicAlbum
  date published: 2024-02-29