Raffi
type: MusicGroup
description: Raffi Cavoukian (, born July 8, 1948), known professionally by the mononym Raffi, is an Armenian-Canadian singer-lyricist and author born in Egypt best known for his children's music. In 1992, The Wa
popularity: 4
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6141523b47e7a69485c3835ba14260de39f864749e50ad3c2615be498840a4ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f34d4109-1945-4cea-8b0b-c175e667d173.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f34d4109-1945-4cea-8b0b-c175e667d173.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f34d4109-1945-4cea-8b0b-c175e667d173
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
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 0x6141523b47e7a69485c3835ba14260de39f864749e50ad3c2615be498840a4ff. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f34d4109-1945-4cea-8b0b-c175e667d173.json and https://artists.proofprofile.net/proofs/artist/f34d4109-1945-4cea-8b0b-c175e667d173.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: 4321
  type: MusicAlbum
  date published: 2012-03-19
album: Не ме разбра
  type: MusicAlbum
  date published: 2013-11-18
album: Mr. Comandante
  type: MusicAlbum
  date published: 2014-07-20
  track: Mr. Comandante
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183272
    explicit: false
    by artist: Raffi
    in album: Mr. Comandante
      type: MusicAlbum
      date published: 2014-07-20
    isrc code: BGA271400011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:22:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x948dc46f9d6e3287db1c4a1b729a81ba3db62f1833998c80fd59c01af9996644
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958873
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958873
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA271400011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:48:10Z
    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 0x948dc46f9d6e3287db1c4a1b729a81ba3db62f1833998c80fd59c01af9996644. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/BGA271400011.
      date published: 2026-07-20T11:48:10Z
    audio: Mr. Comandante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.031
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.891
      additional property: Energy
        type: PropertyValue
        value: 0.885
      additional property: Speechiness
        type: PropertyValue
        value: 0.135
      additional property: Acousticness
        type: PropertyValue
        value: 0.146
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.268
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.961
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.275
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Нали така
  type: MusicAlbum
  date published: 2014-08-08
album: Намери ме
  type: MusicAlbum
  date published: 2016-03-19