Katrina Leskanich
type: MusicGroup
description: Katrina Elizabeth Leskanich ( ; born April 10, 1960) is an American-born, UK-based singer and musician and the former lead singer of the British pop rock band Katrina and the Waves. Their song "Walkin
popularity: 4
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc23eba013cf5e24c346b10bf29ff6e0aac6a5d7e53a9906b9f184926f52f369
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/5765683f-2074-4504-86dc-ad3df9a7f723.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5765683f-2074-4504-86dc-ad3df9a7f723.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5765683f-2074-4504-86dc-ad3df9a7f723
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc23eba013cf5e24c346b10bf29ff6e0aac6a5d7e53a9906b9f184926f52f369","name":"Katrina Leskanich","registered_at":"2026-06-16T20:09:27Z","symbol":"NIM1162064","token_address":"0x9344a4602c48a2dff19642f0c084f042c4df5712","type":"artist","uuid":"5765683f-2074-4504-86dc-ad3df9a7f723"}
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 0xfc23eba013cf5e24c346b10bf29ff6e0aac6a5d7e53a9906b9f184926f52f369. 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/5765683f-2074-4504-86dc-ad3df9a7f723.json and https://artists.proofprofile.net/proofs/artist/5765683f-2074-4504-86dc-ad3df9a7f723.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xfc23eba013cf5e24c346b10bf29ff6e0aac6a5d7e53a9906b9f184926f52f369","name":"Katrina Leskanich","registered_at":"2026-06-16T20:09:27Z","symbol":"NIM1162064","token_address":"0x9344a4602c48a2dff19642f0c084f042c4df5712","type":"artist","uuid":"5765683f-2074-4504-86dc-ad3df9a7f723"}
album: The Best Of Katrina
  type: MusicAlbum
  date published: 2009-07-20
album: Walking On Sunshine
  type: MusicAlbum
  date published: 2011-12-10