jesper
type: MusicGroup
description: Jesper is a given name commonly believed to be of ancient Persian origin, meaning "Treasurer". Some notable people with the name Jesper include: Music Jesper Koch (born 1967), Danish composer Jesp
popularity: 2
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfd6106cc4a795bdb10a80b645340ea186e791dda2e92b1ba3e5f478ee4f49a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/021ff9ff-17c1-4d0c-9605-d20dc25f75a6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/021ff9ff-17c1-4d0c-9605-d20dc25f75a6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/021ff9ff-17c1-4d0c-9605-d20dc25f75a6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
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 0xdfd6106cc4a795bdb10a80b645340ea186e791dda2e92b1ba3e5f478ee4f49a5. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/021ff9ff-17c1-4d0c-9605-d20dc25f75a6.json and https://artists.proofprofile.net/proofs/artist/021ff9ff-17c1-4d0c-9605-d20dc25f75a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: impressed
  type: MusicAlbum
  date published: 2025-04-05
album: SPACIOFIESTA
  type: MusicAlbum
  date published: 2025-09-06
album: LA LUMIERE ATTIRE LES PROIES
  type: MusicAlbum
  date published: 2025-09-13