Jack
type: MusicGroup
description: Jack may refer to: Places Jack, Alabama, US, an unincorporated community Jack, Missouri, US, an unincorporated community Jack County, Texas, a county in Texas People and fictional characters
popularity: 4
followers: 35853
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x583817dc3e735945919b4b2c04443ea531bc9bb891763f10cc7fe6a8332ba7a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ff35def-171d-45f1-bb8f-dfbcd3f9ea89.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ff35def-171d-45f1-bb8f-dfbcd3f9ea89.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6ff35def-171d-45f1-bb8f-dfbcd3f9ea89
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0x583817dc3e735945919b4b2c04443ea531bc9bb891763f10cc7fe6a8332ba7a1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ff35def-171d-45f1-bb8f-dfbcd3f9ea89.json and https://artists.proofprofile.net/proofs/artist/6ff35def-171d-45f1-bb8f-dfbcd3f9ea89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: 9mm
  type: MusicAlbum
  date published: 2017-03-27
album: Everything
  type: MusicAlbum
  date published: 2017-06-23
album: Everything
  type: MusicAlbum
  date published: 2017-07-07
album: Ding Dong
  type: MusicAlbum
  date published: 2017-07-24
album: Munter Hunter
  type: MusicAlbum
  date published: 2017-09-25
album: Looking Back
  type: MusicAlbum
  date published: 2017-09-25
album: The Traveller
  type: MusicAlbum
  date published: 2019-01-25
album: Hong Nhan (KICM - Remix) [Original]
  type: MusicAlbum
  date published: 2019-03-23
album: The Void
  type: MusicAlbum
  date published: 2019-09-20