Jim Black
type: MusicGroup
genre: avant-garde
genre: free jazz
genre: jazz
description: thumb|265px|Jim Black performing in Aarhus, Denmark thumb|265px|Jim Black in Denmark 2018 Jim Black is an American jazz drummer who has performed with Tim Berne and Dave Douglas. He attended Berklee
popularity: 17
followers: 2982
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42b53291329bbcf1fbf30ce25b8c096f96630e9852e55f699a7a4348a97b83ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953691
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a8bbd59-c5fc-4323-ac8f-36079913d204.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a8bbd59-c5fc-4323-ac8f-36079913d204.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6a8bbd59-c5fc-4323-ac8f-36079913d204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:39:17Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42b53291329bbcf1fbf30ce25b8c096f96630e9852e55f699a7a4348a97b83ee","name":"Jim Black","registered_at":"2026-06-14T15:39:00Z","symbol":"NIM0498499","token_address":"0x263b42cd57021629886058c39173f58adbe110d4","type":"artist","uuid":"6a8bbd59-c5fc-4323-ac8f-36079913d204"}
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 0x42b53291329bbcf1fbf30ce25b8c096f96630e9852e55f699a7a4348a97b83ee. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a8bbd59-c5fc-4323-ac8f-36079913d204.json and https://artists.proofprofile.net/proofs/artist/6a8bbd59-c5fc-4323-ac8f-36079913d204.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:39:17Z
  text: {"copyright_id":"0x42b53291329bbcf1fbf30ce25b8c096f96630e9852e55f699a7a4348a97b83ee","name":"Jim Black","registered_at":"2026-06-14T15:39:00Z","symbol":"NIM0498499","token_address":"0x263b42cd57021629886058c39173f58adbe110d4","type":"artist","uuid":"6a8bbd59-c5fc-4323-ac8f-36079913d204"}
album: One Great Night...Live
  type: MusicAlbum
  date published: 2009-06-29
album: Kulak, 29 &30
  type: MusicAlbum
  date published: 1998-01-01