R’ Yaakov Klein
type: MusicGroup
popularity: 4
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78adb52eb045b28cb1a19c2895b08486f9553a7bbf5b4acb8d2b663b6ab093d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953889
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e751328-fd03-4c52-9252-3a70267a2210.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e751328-fd03-4c52-9252-3a70267a2210.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0e751328-fd03-4c52-9252-3a70267a2210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:57:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78adb52eb045b28cb1a19c2895b08486f9553a7bbf5b4acb8d2b663b6ab093d4","name":"R’ Yaakov Klein","registered_at":"2026-06-15T18:33:26Z","symbol":"NIM0795465","token_address":"0x57745c96b6bfdbdbca71e9cb325cdb93a2a93c7a","type":"artist","uuid":"0e751328-fd03-4c52-9252-3a70267a2210"}
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 0x78adb52eb045b28cb1a19c2895b08486f9553a7bbf5b4acb8d2b663b6ab093d4. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e751328-fd03-4c52-9252-3a70267a2210.json and https://artists.proofprofile.net/proofs/artist/0e751328-fd03-4c52-9252-3a70267a2210.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T04:57:45Z
  text: {"copyright_id":"0x78adb52eb045b28cb1a19c2895b08486f9553a7bbf5b4acb8d2b663b6ab093d4","name":"R’ Yaakov Klein","registered_at":"2026-06-15T18:33:26Z","symbol":"NIM0795465","token_address":"0x57745c96b6bfdbdbca71e9cb325cdb93a2a93c7a","type":"artist","uuid":"0e751328-fd03-4c52-9252-3a70267a2210"}
track: Baalei Teshuvah
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293345
  explicit: false
  by artist: Thank You Hashem
  by artist: R’ Yaakov Klein
  in album: Mevakshei Hashem
    type: MusicAlbum
    date published: 2021-08-06
  isrc code: TCAFR2175688
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T09:57:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc80be2d51cea2c9ee20915c137fb0bbc8376f780e014a1244f39af0b30abda5a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFR2175688
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xc80be2d51cea2c9ee20915c137fb0bbc8376f780e014a1244f39af0b30abda5a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFR2175688 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Baalei Teshuvah
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.331
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.551
    additional property: Energy
      type: PropertyValue
      value: 0.539
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.661
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.277
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.729
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor