ELSP
type: MusicGroup
genre: melodic techno
genre: progressive house
description: École libre des sciences politiques Economic lot scheduling problem
popularity: 2
followers: 469
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x531f79c55633f8fee838cca982f87985e9530f12d982670a3d273e78faac57f8
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/515467ca-7421-4a84-9b57-f5b320390b54.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/515467ca-7421-4a84-9b57-f5b320390b54.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/515467ca-7421-4a84-9b57-f5b320390b54
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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 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 0x531f79c55633f8fee838cca982f87985e9530f12d982670a3d273e78faac57f8. 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/515467ca-7421-4a84-9b57-f5b320390b54.json and https://artists.proofprofile.net/proofs/artist/515467ca-7421-4a84-9b57-f5b320390b54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: U & Me, Spring Rain
  type: MusicAlbum
  date published: 2019-08-23
album: Outbreak
  type: MusicAlbum
  date published: 2019-08-24
album: Element, Lost Melody
  type: MusicAlbum
  date published: 2019-10-11
album: Quantum
  type: MusicAlbum
  date published: 2020-02-07
album: Sunset
  type: MusicAlbum
  date published: 2020-03-13
album: I Want You to Believe
  type: MusicAlbum
  date published: 2020-08-28
album: At the End
  type: MusicAlbum
  date published: 2021-07-30
album: From Earth to Space
  type: MusicAlbum
  date published: 2021-08-27
album: I Need That Fire (Extended Mix)
  type: MusicAlbum
  date published: 2021-08-30
album: I Need That Fire
  type: MusicAlbum
  date published: 2021-10-08
album: Get Out
  type: MusicAlbum
  date published: 2022-07-29
album: Get Out (Pakka Remix)
  type: MusicAlbum
  date published: 2022-08-26
album: From Earth to Space (Extended & Remixed)
  type: MusicAlbum
  date published: 2022-09-02
album: Remedy / The One
  type: MusicAlbum
  date published: 2022-09-16
album: I Need That Fire (Envotion Remix)
  type: MusicAlbum
  date published: 2022-11-10