Arts & Leni
type: MusicGroup
genre: electro swing
popularity: 10
followers: 838
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb302d52619d57c63df4afba497eb03b2fcd95de67c3176feab0a33886792805
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c3413e0-c263-4e0c-b803-a0fa3f2335e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c3413e0-c263-4e0c-b803-a0fa3f2335e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c3413e0-c263-4e0c-b803-a0fa3f2335e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb302d52619d57c63df4afba497eb03b2fcd95de67c3176feab0a33886792805","name":"Arts & Leni","registered_at":"2026-06-16T16:28:28Z","symbol":"NIM1109335","token_address":"0x431fd5e1fd7e1ef4cabfa8bfd0bd924ceb20e53a","type":"artist","uuid":"4c3413e0-c263-4e0c-b803-a0fa3f2335e6"}
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 0xdb302d52619d57c63df4afba497eb03b2fcd95de67c3176feab0a33886792805. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c3413e0-c263-4e0c-b803-a0fa3f2335e6.json and https://artists.proofprofile.net/proofs/artist/4c3413e0-c263-4e0c-b803-a0fa3f2335e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xdb302d52619d57c63df4afba497eb03b2fcd95de67c3176feab0a33886792805","name":"Arts & Leni","registered_at":"2026-06-16T16:28:28Z","symbol":"NIM1109335","token_address":"0x431fd5e1fd7e1ef4cabfa8bfd0bd924ceb20e53a","type":"artist","uuid":"4c3413e0-c263-4e0c-b803-a0fa3f2335e6"}
album: Ostfunk Berlin Compilation - Best of Arts & Leni
  type: MusicAlbum
  date published: 1970-01-17
album: Drop That
  type: MusicAlbum
  date published: 1970-01-17
album: Hart Aber Hertzlich No1
  type: MusicAlbum
  date published: 2011-02-03
album: Super Tony E.P.
  type: MusicAlbum
  date published: 2011-04-29
album: What I Do
  type: MusicAlbum
  date published: 2011-06-10
album: Tonys Pub E.P.
  type: MusicAlbum
  date published: 2011-08-05
album: Ton Liebt Klang Vinyledition Three
  type: MusicAlbum
  date published: 2011-08-26
album: Tony's Happy Guys E.p.
  type: MusicAlbum
  date published: 2011-12-09
album: Tony And The Little Violine Remix Ep
  type: MusicAlbum
  date published: 2012-06-20
album: El Barrido
  type: MusicAlbum
  date published: 2013-08-06
album: Holiday Swing
  type: MusicAlbum
  date published: 2013-08-23
album: Holiday Swing
  type: MusicAlbum
  date published: 2013-08-23
album: Best of Remixes
  type: MusicAlbum
  date published: 2014-06-03
album: Drop That
  type: MusicAlbum
  date published: 2014-09-19
album: Ostfunk Berlin Compilation - Best of Arts & Leni
  type: MusicAlbum
  date published: 2015-03-27
album: All Over
  type: MusicAlbum
  date published: 2015-09-29
album: All Over
  type: MusicAlbum
  date published: 2015-09-29
album: Meets, Vol. 1
  type: MusicAlbum
  date published: 2016-07-04
album: Meets, Vol. 1
  type: MusicAlbum
  date published: 2016-07-04
album: Peace
  type: MusicAlbum
  date published: 2016-10-28
album: Peace
  type: MusicAlbum
  date published: 2016-10-28