Tzlil V'zemer Boys Choir
type: MusicGroup
popularity: 13
followers: 1916
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c27f033ee901ebf653b5e9a21bf272548953739eee2e7aa733b0eff046d6020
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953687
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953687
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/69278319-049f-41b0-9379-0e11faf55d96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/69278319-049f-41b0-9379-0e11faf55d96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/69278319-049f-41b0-9379-0e11faf55d96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:19:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1c27f033ee901ebf653b5e9a21bf272548953739eee2e7aa733b0eff046d6020","name":"Tzlil V'zemer Boys Choir","registered_at":"2026-06-14T15:26:01Z","symbol":"NIM0495399","token_address":"0xb5a2787cc5473608cd575b5cfb7638d708876bd3","type":"artist","uuid":"69278319-049f-41b0-9379-0e11faf55d96"}
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 0x1c27f033ee901ebf653b5e9a21bf272548953739eee2e7aa733b0eff046d6020. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69278319-049f-41b0-9379-0e11faf55d96.json and https://artists.proofprofile.net/proofs/artist/69278319-049f-41b0-9379-0e11faf55d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:19:15Z
  text: {"copyright_id":"0x1c27f033ee901ebf653b5e9a21bf272548953739eee2e7aa733b0eff046d6020","name":"Tzlil V'zemer Boys Choir","registered_at":"2026-06-14T15:26:01Z","symbol":"NIM0495399","token_address":"0xb5a2787cc5473608cd575b5cfb7638d708876bd3","type":"artist","uuid":"69278319-049f-41b0-9379-0e11faf55d96"}
album: Let Us Grow!, Vol. 5
  type: MusicAlbum
  date published: 2010-08-04
album: Hear Us Now!. Vol. 8
  type: MusicAlbum
  date published: 2010-08-04
album: Volume 1
  type: MusicAlbum
  date published: 2010-08-04
  track: The Little Bird
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189026
    explicit: false
    by artist: Tzlil V'zemer Boys Choir
    in album: Volume 1
      type: MusicAlbum
      date published: 2010-08-04
    isrc code: USHM81031977
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:17:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9cf2fa2bbccb1f0d5c3e2bfe2889e0bf54e380e8dad92e1e14802698bfcb1357
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81031977
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:26:13Z
    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 0x9cf2fa2bbccb1f0d5c3e2bfe2889e0bf54e380e8dad92e1e14802698bfcb1357. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/USHM81031977.
      date published: 2026-07-19T19:26:13Z
    audio: The Little Bird
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 157.632
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.336
      additional property: Energy
        type: PropertyValue
        value: 0.212
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.031
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.165
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.403
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.856
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Volume 3
  type: MusicAlbum
  date published: 2010-08-04
album: Volume 2
  type: MusicAlbum
  date published: 2010-08-04
  track: K'ayol Taarog
    type: MusicRecording
    duration: PT5M4S
    duration ms: 304906
    explicit: false
    by artist: Tzlil V'zemer Boys Choir
    in album: Volume 2
      type: MusicAlbum
      date published: 2010-08-04
    isrc code: USHM81032011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:08:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x45fef3000c2adfe8315ce7a985bbb52f12cbeb25a336e2cc5c814d59e02c913c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81032011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x45fef3000c2adfe8315ce7a985bbb52f12cbeb25a336e2cc5c814d59e02c913c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM81032011.
      date published: 2026-07-05T19:27:56Z
    audio: K'ayol Taarog
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.325
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.154
      additional property: Energy
        type: PropertyValue
        value: 0.228
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.323
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Classics, Vol. 2
album: Ki Nicham Hashem Tzion, Vol. 4
album: Be The Best You Can Be, Vol. 7
album: It's Never Too Late, Vol. 6
album: Classics
album: Hooked on Chanukah

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.196

Valence (Positivity)
type: PropertyValue
value: 0.111

Loudness (dB)
type: PropertyValue
value: -15.673

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Classics, Vol. 2
type: MusicAlbum
date published: 2010-08-04

Ki Nicham Hashem Tzion, Vol. 4
type: MusicAlbum
date published: 2010-08-04

Be The Best You Can Be, Vol. 7
type: MusicAlbum
date published: 2010-08-04

It's Never Too Late, Vol. 6
type: MusicAlbum
date published: 2010-08-04

Classics
type: MusicAlbum
date published: 2010-08-04

Hooked on Chanukah
type: MusicAlbum
date published: 2010-09-16