Shua Katzman
type: MusicGroup
popularity: 9
followers: 318
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bdc97ddc9310f35c4780ad6882d2f214101e5f55b481bf8890b7ad7edfd2fe4
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/8e2bea24-7f45-4758-974d-d8a31bc90773.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e2bea24-7f45-4758-974d-d8a31bc90773.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e2bea24-7f45-4758-974d-d8a31bc90773
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7bdc97ddc9310f35c4780ad6882d2f214101e5f55b481bf8890b7ad7edfd2fe4","name":"Shua Katzman","registered_at":"2026-06-17T15:17:31Z","symbol":"NIM1435837","token_address":"0x172087ce7fbdb8d51254bf0fbe4a0dec0a588a94","type":"artist","uuid":"8e2bea24-7f45-4758-974d-d8a31bc90773"}
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 0x7bdc97ddc9310f35c4780ad6882d2f214101e5f55b481bf8890b7ad7edfd2fe4. 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/8e2bea24-7f45-4758-974d-d8a31bc90773.json and https://artists.proofprofile.net/proofs/artist/8e2bea24-7f45-4758-974d-d8a31bc90773.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x7bdc97ddc9310f35c4780ad6882d2f214101e5f55b481bf8890b7ad7edfd2fe4","name":"Shua Katzman","registered_at":"2026-06-17T15:17:31Z","symbol":"NIM1435837","token_address":"0x172087ce7fbdb8d51254bf0fbe4a0dec0a588a94","type":"artist","uuid":"8e2bea24-7f45-4758-974d-d8a31bc90773"}
album: Keili Atah
  type: MusicAlbum
  date published: 2024-01-18
album: Lechai Olamim (sax)
  type: MusicAlbum
  date published: 2024-01-20
album: Chabad Niggunim
  type: MusicAlbum
  date published: 2024-01-21
album: Sibat Hasibot (sax)
  type: MusicAlbum
  date published: 2024-01-25
album: Yifrach jam
  type: MusicAlbum
  date published: 2024-02-11
album: באור גדול
  type: MusicAlbum
  date published: 2024-04-18
album: Ki onu amecho
  type: MusicAlbum
  date published: 2024-04-22
album: Atelef Iver
  type: MusicAlbum
  date published: 2024-08-12
album: Vehi Sheamda
  type: MusicAlbum
  date published: 2024-08-14
album: Lo Avo
  type: MusicAlbum
  date published: 2024-10-28
album: Chabad Niggunim II
  type: MusicAlbum
  date published: 2025-01-16
  track: Kol dodi
    type: MusicRecording
    duration: PT5M52S
    duration ms: 352200
    explicit: false
    by artist: Shua Katzman
    in album: Chabad Niggunim II
      type: MusicAlbum
      date published: 2025-01-16
    isrc code: QZFZ42595006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T20:00:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc776f347bee5100c173676425a1f174039ee5c6e5fda7908553cc2629f5f0438
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959054
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959054
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42595006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T20:19:31Z
    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 0xc776f347bee5100c173676425a1f174039ee5c6e5fda7908553cc2629f5f0438. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZFZ42595006.
      date published: 2026-07-21T20:19:31Z
    audio: Kol dodi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.273
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.279
      additional property: Energy
        type: PropertyValue
        value: 0.257
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.972
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.917
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.095
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.294
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Nigun L'shabbos v'yom tov I
    type: MusicRecording
    duration: PT3M54S
    duration ms: 234800
    explicit: false
    by artist: Shua Katzman
    in album: Chabad Niggunim II
      type: MusicAlbum
      date published: 2025-01-16
    isrc code: QZFZ42595010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T22:07:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9bfe6f95c67284c63bdabbc3a32e7c2ff29cf22b297bafba32a9ae153e513ab8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959069
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959069
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42595010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:32:59Z
    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 0x9bfe6f95c67284c63bdabbc3a32e7c2ff29cf22b297bafba32a9ae153e513ab8. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZFZ42595010.
      date published: 2026-07-21T22:32:59Z
    audio: Nigun L'shabbos v'yom tov I
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.321
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.317

Energy
type: PropertyValue
value: 0.219

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.981

Instrumentalness
type: PropertyValue
value: 0.95

Liveness
type: PropertyValue
value: 0.137

Valence (Positivity)
type: PropertyValue
value: 0.065

Loudness (dB)
type: PropertyValue
value: -15.925

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major