Dafna
type: MusicGroup
description: thumb|right|River Dan within kibbutz Dafna Dafna () is a kibbutz in the Upper Galilee in northern Israel. Located seven kilometres east of Kiryat Shmona and surrounded by three streams of the Dan Rive
popularity: 5
followers: 66
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additional property: OTSVerifyInstructions
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  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0722ad159902ed95a3e8a1338388fc275fc7cee707c3006420809479b299e1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c27a61c2-c78f-46d0-a956-97b85cbee9ca.json and https://artists.proofprofile.net/proofs/artist/c27a61c2-c78f-46d0-a956-97b85cbee9ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Dafna's Shir Fun
  type: MusicAlbum
  date published: 2009-01-01
album: Halilah Hazeh! A Shir Fun Pesach
  type: MusicAlbum
  date published: 2011-03-21
  track: Ma Nishtana
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173709
    explicit: false
    by artist: Dafna
    in album: Halilah Hazeh! A Shir Fun Pesach
      type: MusicAlbum
      date published: 2011-03-21
    isrc code: USCGH1192187
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    additional property: OTSTimestamp
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    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626343d46d51245d632a8c13f652a27eeb2e99cd9a4f62414a81e45f339404b0. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USCGH1192187.
      date published: 2026-07-18T17:06:26Z
    audio: Ma Nishtana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.734
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
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        value: 0.502
      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.426
      additional property: Loudness (dB)
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      additional property: Key Name
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        value: C#
      additional property: Mode Name
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album: Roots Reissues. Vol 1.
  type: MusicAlbum
  date published: 2012-09-19