Jonathan Greenstein
type: MusicGroup
description: Jonathan Greenstein (born November 1, 1967) is an antique Judaica authentication expert. He is the owner, chief expert, and president of J. Greenstein & Company, an auction house in the United States
popularity: 3
followers: 264
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c00ffb374ffdc5bdb60d4eedd79006824768e963294bd6dea3d4bdc9c2ec252
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/8dc40a0d-eac0-4804-9f23-43330944491e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dc40a0d-eac0-4804-9f23-43330944491e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8dc40a0d-eac0-4804-9f23-43330944491e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5c00ffb374ffdc5bdb60d4eedd79006824768e963294bd6dea3d4bdc9c2ec252","name":"Jonathan Greenstein","registered_at":"2026-06-17T15:08:58Z","symbol":"NIM1433798","token_address":"0xb0ea782d0be8fc079982108dbab2f0764efed56e","type":"artist","uuid":"8dc40a0d-eac0-4804-9f23-43330944491e"}
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 0x5c00ffb374ffdc5bdb60d4eedd79006824768e963294bd6dea3d4bdc9c2ec252. 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/8dc40a0d-eac0-4804-9f23-43330944491e.json and https://artists.proofprofile.net/proofs/artist/8dc40a0d-eac0-4804-9f23-43330944491e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x5c00ffb374ffdc5bdb60d4eedd79006824768e963294bd6dea3d4bdc9c2ec252","name":"Jonathan Greenstein","registered_at":"2026-06-17T15:08:58Z","symbol":"NIM1433798","token_address":"0xb0ea782d0be8fc079982108dbab2f0764efed56e","type":"artist","uuid":"8dc40a0d-eac0-4804-9f23-43330944491e"}
album: Thinking
  type: MusicAlbum
  date published: 2011-08-19
album: Vol. 1 (feat. Gilad Hekselman, Victor Gould, or Bareket & Mark Whitfield Jr)
  type: MusicAlbum
  date published: 2016-01-29
  track: Yuval's Cubism (feat. Gilad Hekselman, Victor Gould, or Bareket & Mark Whitfield Jr)
    type: MusicRecording
    duration: PT5M1S
    duration ms: 301622
    explicit: false
    by artist: Jonathan Greenstein
    in album: Vol. 1 (feat. Gilad Hekselman, Victor Gould, or Bareket & Mark Whitfield Jr)
      type: MusicAlbum
      date published: 2016-01-29
    isrc code: USAAY1600004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:35:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd41a8146c30bccd4397d75fe5bfe77fcc085f7523fcd7f4a90cf43396f4ea418
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAAY1600004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:03:27Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xd41a8146c30bccd4397d75fe5bfe77fcc085f7523fcd7f4a90cf43396f4ea418. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAAY1600004.
      date published: 2026-07-19T20:03:27Z
    audio: Yuval's Cubism (feat. Gilad Hekselman, Victor Gould, or Bareket & Mark Whitfield Jr)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.859
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.373
      additional property: Energy
        type: PropertyValue
        value: 0.37
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.749
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.889
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.611
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.875
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Vol 2
  type: MusicAlbum
  date published: 2017-11-10
album: Vol 2
  type: MusicAlbum
  date published: 2017-11-10
album: Grey Skies from the Atl (To a Broken Israeli Heart)
  type: MusicAlbum
  date published: 2019-02-15
album: Vol 3
  type: MusicAlbum
  date published: 2019-05-31
album: Bookends
  type: MusicAlbum
  date published: 2019-12-13
album: Trumpet Kings
  type: MusicAlbum
  date published: 2020-04-24