Laura & Leonard
type: MusicGroup
genre: finnish pop
genre: iskelmä
popularity: 2
followers: 385
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fa5a58b9c7c9ba06f1e4771689bfe64132c9f5840b2f376ea4e6adcb2cf5790
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6e99324-a506-4c71-9bdd-708563e5e807.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6e99324-a506-4c71-9bdd-708563e5e807.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6e99324-a506-4c71-9bdd-708563e5e807
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fa5a58b9c7c9ba06f1e4771689bfe64132c9f5840b2f376ea4e6adcb2cf5790","name":"Laura & Leonard","registered_at":"2026-06-21T02:58:34Z","symbol":"NIM1797992","token_address":"0xec1c792d0c2317268353001a4b9dda223bdd2565","type":"artist","uuid":"d6e99324-a506-4c71-9bdd-708563e5e807"}
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 0x3fa5a58b9c7c9ba06f1e4771689bfe64132c9f5840b2f376ea4e6adcb2cf5790. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6e99324-a506-4c71-9bdd-708563e5e807.json and https://artists.proofprofile.net/proofs/artist/d6e99324-a506-4c71-9bdd-708563e5e807.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x3fa5a58b9c7c9ba06f1e4771689bfe64132c9f5840b2f376ea4e6adcb2cf5790","name":"Laura & Leonard","registered_at":"2026-06-21T02:58:34Z","symbol":"NIM1797992","token_address":"0xec1c792d0c2317268353001a4b9dda223bdd2565","type":"artist","uuid":"d6e99324-a506-4c71-9bdd-708563e5e807"}
album: Fly (Acoustic Version)
  type: MusicAlbum
  date published: 2017-12-22
album: Who Ü Are (Acoustic Version)
  type: MusicAlbum
  date published: 2018-01-14
album: Busy
  type: MusicAlbum
  date published: 2018-04-05
album: Fly (Summer Edit)
  type: MusicAlbum
  date published: 2018-08-13
album: You Are My No. 1 (Acoustic Mondays)
  type: MusicAlbum
  date published: 2018-08-20
album: September Rain
  type: MusicAlbum
  date published: 2019-01-19
album: Fly
  type: MusicAlbum
  date published: 2019-05-01
album: Paina laikkii
  type: MusicAlbum
  date published: 2021-04-08
album: Niinku sois Avicii (Nyt lähtee)
  type: MusicAlbum
  date published: 2021-07-01
album: Tyhjiä lauseita EP
  type: MusicAlbum
  date published: 2021-11-05
album: Rakkaus vain...
  type: MusicAlbum
  date published: 2021-12-03
album: Nollat taulussa
  type: MusicAlbum
  date published: 2022-01-14
album: Todennäköistä (Pyörii kuin ruletti)
  type: MusicAlbum
  date published: 2024-05-31
album: Niinkuin lumi Antarktikseen. EP
  type: MusicAlbum
  date published: 2024-10-18
album: Enkeli Taivaan
  type: MusicAlbum
  date published: 2024-11-22
album: Rocky!
  type: MusicAlbum
  date published: 2025-02-14