מקהלת העפרוני
type: MusicGroup
popularity: 22
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc48d7f7a795e4ae1fda23c4c5547c1a15cb3eb72964334d81633863c7c1d400
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9dcd95ce-70a9-4539-ada3-c27e1b80620d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9dcd95ce-70a9-4539-ada3-c27e1b80620d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9dcd95ce-70a9-4539-ada3-c27e1b80620d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdc48d7f7a795e4ae1fda23c4c5547c1a15cb3eb72964334d81633863c7c1d400","name":"מקהלת העפרוני","registered_at":"2026-06-12T05:40:03Z","symbol":"NIM0203358","token_address":"0x722074698756b2dab38773d419248a2a87af5112","type":"artist","uuid":"9dcd95ce-70a9-4539-ada3-c27e1b80620d"}
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 0xdc48d7f7a795e4ae1fda23c4c5547c1a15cb3eb72964334d81633863c7c1d400. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9dcd95ce-70a9-4539-ada3-c27e1b80620d.json and https://artists.proofprofile.net/proofs/artist/9dcd95ce-70a9-4539-ada3-c27e1b80620d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xdc48d7f7a795e4ae1fda23c4c5547c1a15cb3eb72964334d81633863c7c1d400","name":"מקהלת העפרוני","registered_at":"2026-06-12T05:40:03Z","symbol":"NIM0203358","token_address":"0x722074698756b2dab38773d419248a2a87af5112","type":"artist","uuid":"9dcd95ce-70a9-4539-ada3-c27e1b80620d"}
album: חורף ילדותי
  type: MusicAlbum
  date published: 2019-02-10
track: גבעה אחת
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246250
  explicit: false
  by artist: Amir Dadon
  by artist: תזמורת הרחוב הירושלמית
  by artist: מקהלת העפרוני
  in album: גבעה אחת (Live Barby)
    type: MusicAlbum
    date published: 2024-02-06
  genre: mizrahi
  isrc code: IL7532413058
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T17:20:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd73057d2ede8131ab365cac4957d1a967e0ee8cf3504de32a78423308ede050d
  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/IL7532413058
  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 0xd73057d2ede8131ab365cac4957d1a967e0ee8cf3504de32a78423308ede050d. 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/IL7532413058 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: גבעה אחת
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.827
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.288
    additional property: Energy
      type: PropertyValue
      value: 0.521
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.742
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.81
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.231
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.193
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor