Vacant Van
type: MusicGroup
genre: lounge
popularity: 18
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80552a7b88df53170ebd5c3293e58f6779adadb97ea9b669e3982d6e0f94ab4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953687
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953687
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/681f5706-3e03-496a-bbd8-dfc231b12f46.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/681f5706-3e03-496a-bbd8-dfc231b12f46.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/681f5706-3e03-496a-bbd8-dfc231b12f46
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:19:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80552a7b88df53170ebd5c3293e58f6779adadb97ea9b669e3982d6e0f94ab4b","name":"Vacant Van","registered_at":"2026-06-14T15:21:40Z","symbol":"NIM0494366","token_address":"0x84435781c189b656d70ad6f77844395fdaf4534b","type":"artist","uuid":"681f5706-3e03-496a-bbd8-dfc231b12f46"}
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 0x80552a7b88df53170ebd5c3293e58f6779adadb97ea9b669e3982d6e0f94ab4b. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/681f5706-3e03-496a-bbd8-dfc231b12f46.json and https://artists.proofprofile.net/proofs/artist/681f5706-3e03-496a-bbd8-dfc231b12f46.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T20:19:15Z
  text: {"copyright_id":"0x80552a7b88df53170ebd5c3293e58f6779adadb97ea9b669e3982d6e0f94ab4b","name":"Vacant Van","registered_at":"2026-06-14T15:21:40Z","symbol":"NIM0494366","token_address":"0x84435781c189b656d70ad6f77844395fdaf4534b","type":"artist","uuid":"681f5706-3e03-496a-bbd8-dfc231b12f46"}
album: Five Ponds
  type: MusicAlbum
  date published: 2021-12-31
album: Apprivoise
  type: MusicAlbum
  date published: 2022-02-11
album: Pardon
  type: MusicAlbum
  date published: 2022-06-10
album: Velveteen Machine
  type: MusicAlbum
  date published: 2025-03-07