John Jastszebski
type: MusicGroup
popularity: 2
followers: 373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x071686936ff6e8af4605207faf295aa1bdbc8b95d9d9675b27c39f8ef2e60831
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f02a8b59-dd8c-4b5b-8668-8a67501c1349.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f02a8b59-dd8c-4b5b-8668-8a67501c1349.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f02a8b59-dd8c-4b5b-8668-8a67501c1349
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x071686936ff6e8af4605207faf295aa1bdbc8b95d9d9675b27c39f8ef2e60831","name":"John Jastszebski","registered_at":"2026-06-21T12:37:47Z","symbol":"NIM1925259","token_address":"0xc9d785592663986a2321ea0928770e7b9d196b16","type":"artist","uuid":"f02a8b59-dd8c-4b5b-8668-8a67501c1349"}
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 0x071686936ff6e8af4605207faf295aa1bdbc8b95d9d9675b27c39f8ef2e60831. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f02a8b59-dd8c-4b5b-8668-8a67501c1349.json and https://artists.proofprofile.net/proofs/artist/f02a8b59-dd8c-4b5b-8668-8a67501c1349.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x071686936ff6e8af4605207faf295aa1bdbc8b95d9d9675b27c39f8ef2e60831","name":"John Jastszebski","registered_at":"2026-06-21T12:37:47Z","symbol":"NIM1925259","token_address":"0xc9d785592663986a2321ea0928770e7b9d196b16","type":"artist","uuid":"f02a8b59-dd8c-4b5b-8668-8a67501c1349"}
album: Musique De Nuit
  type: MusicAlbum
  date published: 2011-06-13
album: Children of Children - EP
  type: MusicAlbum
  date published: 2011-11-01
album: Saveur de Peche EP
  type: MusicAlbum
  date published: 2011-11-04
album: Jim in Paris
  type: MusicAlbum
  date published: 2012-08-23
album: Jim in Paris
  type: MusicAlbum
  date published: 2012-08-23
album: Diversity - EP
  type: MusicAlbum
  date published: 2012-09-20
album: Work
  type: MusicAlbum
  date published: 2012-11-26
album: Work EP
  type: MusicAlbum
  date published: 2012-12-19
album: Work
  type: MusicAlbum
  date published: 2013-07-19
album: Warm - EP
  type: MusicAlbum
  date published: 2013-08-29
album: The Set Up
  type: MusicAlbum
  date published: 2014-02-28
album: The Set Up
  type: MusicAlbum
  date published: 2014-02-28
album: Straight - EP
  type: MusicAlbum
  date published: 2014-10-06
album: Would Be Back
  type: MusicAlbum
  date published: 2014-10-29
album: Would Be Back EP
  type: MusicAlbum
  date published: 2015-01-16
album: Would Be Back EP
  type: MusicAlbum
  date published: 2015-01-16
album: Circle EP
  type: MusicAlbum
  date published: 2015-04-13
album: Circle EP
  type: MusicAlbum
  date published: 2015-05-11
album: Drone - EP
  type: MusicAlbum
  date published: 2015-12-21
album: Seasons
  type: MusicAlbum
  date published: 2017-04-24