Petros Bérékétis
type: MusicGroup
genre: traditional music
popularity: 4
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1dac4b840faa65d3d760ad4caa086a2a5c6f51a82092cd2490c4d359c6dc41b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/409d2e66-fdd7-4885-967f-4148fcca8410.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/409d2e66-fdd7-4885-967f-4148fcca8410.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/409d2e66-fdd7-4885-967f-4148fcca8410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1dac4b840faa65d3d760ad4caa086a2a5c6f51a82092cd2490c4d359c6dc41b8","name":"Petros Bérékétis","registered_at":"2026-06-16T12:06:02Z","symbol":"NIM1046718","token_address":"0x521d6fd515192390587f8f76beb3bcc56187a6cb","type":"artist","uuid":"409d2e66-fdd7-4885-967f-4148fcca8410"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dac4b840faa65d3d760ad4caa086a2a5c6f51a82092cd2490c4d359c6dc41b8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/409d2e66-fdd7-4885-967f-4148fcca8410.json and https://artists.proofprofile.net/proofs/artist/409d2e66-fdd7-4885-967f-4148fcca8410.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x1dac4b840faa65d3d760ad4caa086a2a5c6f51a82092cd2490c4d359c6dc41b8","name":"Petros Bérékétis","registered_at":"2026-06-16T12:06:02Z","symbol":"NIM1046718","token_address":"0x521d6fd515192390587f8f76beb3bcc56187a6cb","type":"artist","uuid":"409d2e66-fdd7-4885-967f-4148fcca8410"}
album: Grèce - Musique Sacrée Byzantine, Grand Chant Octotonal À La Vierge
  type: MusicAlbum
  date published: 2007-04-11
  track: Sainte Vierge, Mère De Dieu (1er Mode)
    type: MusicRecording
    duration: PT5M39S
    duration ms: 339640
    explicit: false
    by artist: Petros Bérékétis
    in album: Grèce - Musique Sacrée Byzantine, Grand Chant Octotonal À La Vierge
      type: MusicAlbum
      date published: 2007-04-11
    genre: traditional music
    isrc code: FR6V80207861
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:26:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7830723dee0919eb3c39dd0f73e366d62093ec0ea0773587d7c4007fdb33a155
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80207861
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7830723dee0919eb3c39dd0f73e366d62093ec0ea0773587d7c4007fdb33a155. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR6V80207861.
      date published: 2026-07-05T04:47:21Z
    audio: Sainte Vierge, Mère De Dieu (1er Mode)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.204
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.107
      additional property: Energy
        type: PropertyValue
        value: 0.118
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.981
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.21
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.04
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.375
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major