Studebaker John
type: MusicGroup
genre: blues
genre: blues rock
description: John Grimaldi (born November 5, 1952) , better known by his stage name Studebaker John is an American blues guitarist and harmonica player. He is a practitioner of the Chicago blues style, with his st
popularity: 7
followers: 1374
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa32d28285074a9617e222fdee71d9032b93c91a75568e28416a72c8d37a33437
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f863ff1a-ca3a-4553-b021-3e14dc26f73c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f863ff1a-ca3a-4553-b021-3e14dc26f73c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f863ff1a-ca3a-4553-b021-3e14dc26f73c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa32d28285074a9617e222fdee71d9032b93c91a75568e28416a72c8d37a33437","name":"Studebaker John","registered_at":"2026-06-21T16:25:14Z","symbol":"NIM1973978","token_address":"0xcfd965ae4ee4e58b07915c3b3a4e3f01855e6ac7","type":"artist","uuid":"f863ff1a-ca3a-4553-b021-3e14dc26f73c"}
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 0xa32d28285074a9617e222fdee71d9032b93c91a75568e28416a72c8d37a33437. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f863ff1a-ca3a-4553-b021-3e14dc26f73c.json and https://artists.proofprofile.net/proofs/artist/f863ff1a-ca3a-4553-b021-3e14dc26f73c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xa32d28285074a9617e222fdee71d9032b93c91a75568e28416a72c8d37a33437","name":"Studebaker John","registered_at":"2026-06-21T16:25:14Z","symbol":"NIM1973978","token_address":"0xcfd965ae4ee4e58b07915c3b3a4e3f01855e6ac7","type":"artist","uuid":"f863ff1a-ca3a-4553-b021-3e14dc26f73c"}
album: Born to Win
  type: MusicAlbum
  date published: 1991
album: Rockin' The Blues '85
  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2004
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  type: MusicAlbum
  date published: 2008-11-30
album: Old School Rocking
  type: MusicAlbum
  date published: 2012-02-21
album: Songs for None
  type: MusicAlbum
  date published: 2017-04-14
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  type: MusicAlbum
  date published: 2018-07-27
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-03-10