Jessica
type: MusicGroup
description: Jessica may refer to: Given name Jessica (given name), includes a list of people and fictional characters with this name Jessica Folcker, a Swedish singer known by the mononym Jessica Jessica Jun
popularity: 2
followers: 549
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa04e521213fb5380d3b7044456833126a5c3986a8848be10ea4c9b70b24e6eb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acfd2489-9621-4e74-a3ae-0aa698d960fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acfd2489-9621-4e74-a3ae-0aa698d960fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acfd2489-9621-4e74-a3ae-0aa698d960fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
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 0xa04e521213fb5380d3b7044456833126a5c3986a8848be10ea4c9b70b24e6eb5. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acfd2489-9621-4e74-a3ae-0aa698d960fe.json and https://artists.proofprofile.net/proofs/artist/acfd2489-9621-4e74-a3ae-0aa698d960fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
album: Dating Agency, Cyrano (Original Television Soundtrack), Pt. 4
  type: MusicAlbum
  date published: 2013-07-02
album: WONDERLAND (Korean Version)
  type: MusicAlbum
  date published: 2016-12-10
album: 봄이라서 그래
  type: MusicAlbum
  date published: 2017-04-18
album: 봄이라서 그래
  type: MusicAlbum
  date published: 2017-04-18
album: Wonderland NHR Remix
  type: MusicAlbum
  date published: 2017-07-21
album: Wonderland NHR Remix EP (English Version)
  type: MusicAlbum
  date published: 2018-06-01
album: Wonderland NHR Remix EP (Korean Version)
  type: MusicAlbum
  date published: 2018-06-01
album: One More Christmas
  type: MusicAlbum
  date published: 2018-12-18
album: Call Me Before You Sleep (feat. CrazyBoy)
  type: MusicAlbum
  date published: 2019-10-10
album: Losa
  type: MusicAlbum
  date published: 2022-08-05