Bob Zentz
type: MusicGroup
description: Bob Zentz is an American musician and educator from Norfolk, Virginia who has been performing for more than thirty years. He is a guitarist and also plays the autoharp, lute, melodeon, mouth harp, ba
popularity: 3
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd833eb8d48959ad613246209fda88937d012de6d015b82bb73f77ce98834c046
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c91b4b3d-5204-4017-87ae-6e70625150ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c91b4b3d-5204-4017-87ae-6e70625150ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c91b4b3d-5204-4017-87ae-6e70625150ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd833eb8d48959ad613246209fda88937d012de6d015b82bb73f77ce98834c046","name":"Bob Zentz","registered_at":"2026-06-20T22:21:57Z","symbol":"NIM1732716","token_address":"0x85c4a1fb4614014ce92e1fc0c36944e37210eaaa","type":"artist","uuid":"c91b4b3d-5204-4017-87ae-6e70625150ae"}
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 0xd833eb8d48959ad613246209fda88937d012de6d015b82bb73f77ce98834c046. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c91b4b3d-5204-4017-87ae-6e70625150ae.json and https://artists.proofprofile.net/proofs/artist/c91b4b3d-5204-4017-87ae-6e70625150ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xd833eb8d48959ad613246209fda88937d012de6d015b82bb73f77ce98834c046","name":"Bob Zentz","registered_at":"2026-06-20T22:21:57Z","symbol":"NIM1732716","token_address":"0x85c4a1fb4614014ce92e1fc0c36944e37210eaaa","type":"artist","uuid":"c91b4b3d-5204-4017-87ae-6e70625150ae"}
album: Mirrors and Changes
  type: MusicAlbum
  date published: 1974-01-01
album: Mirrors and Changes
  type: MusicAlbum
  date published: 1974-01-01
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  type: MusicAlbum
  date published: 1978-01-01
album: Beaucatcher Farewell
  type: MusicAlbum
  date published: 1978-01-01
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  type: MusicAlbum
  date published: 2019-11-19
album: Shipmates
  type: MusicAlbum
  date published: 2020-03-10
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  type: MusicAlbum
  date published: 2020-04-13