Spencer Bohren
type: MusicGroup
genre: blues
description: thumb|Spencer Bohren (2007) thumb|Spencer Bohren performing as part of his Down the Dirt Road Blues lecture-performance at the G.A.R. Hall in Peninsula, Ohio United States. Spencer Ward Bohren (April
popularity: 3
followers: 698
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x198fa8d989025f713e3ac952bc1ae9217e470dfb7137e179a10276f914cb4b3e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dfd34aa-cec1-4459-9571-425e83f589b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dfd34aa-cec1-4459-9571-425e83f589b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8dfd34aa-cec1-4459-9571-425e83f589b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x198fa8d989025f713e3ac952bc1ae9217e470dfb7137e179a10276f914cb4b3e","name":"Spencer Bohren","registered_at":"2026-06-17T15:33:43Z","symbol":"NIM1439716","token_address":"0x3c4c6de7b409ebf2d7263cef52e35ff03694775f","type":"artist","uuid":"8dfd34aa-cec1-4459-9571-425e83f589b0"}
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 0x198fa8d989025f713e3ac952bc1ae9217e470dfb7137e179a10276f914cb4b3e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8dfd34aa-cec1-4459-9571-425e83f589b0.json and https://artists.proofprofile.net/proofs/artist/8dfd34aa-cec1-4459-9571-425e83f589b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x198fa8d989025f713e3ac952bc1ae9217e470dfb7137e179a10276f914cb4b3e","name":"Spencer Bohren","registered_at":"2026-06-17T15:33:43Z","symbol":"NIM1439716","token_address":"0x3c4c6de7b409ebf2d7263cef52e35ff03694775f","type":"artist","uuid":"8dfd34aa-cec1-4459-9571-425e83f589b0"}
album: Carry the Word
  type: MusicAlbum
  date published: 2000-01-01
album: Southern Cross
  type: MusicAlbum
  date published: 2004-01-01
album: Makin' It Home to You
  type: MusicAlbum
  date published: 2017-10-23