Effie Ratsou
type: MusicGroup
genre: entehno
genre: laïko
popularity: 8
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cb63340b16531b2ae290c46401d95b297ecce8f96c5ff018279800a21e4834c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55567dca-75f3-49ec-98f2-e20c20aa7c2b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55567dca-75f3-49ec-98f2-e20c20aa7c2b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/55567dca-75f3-49ec-98f2-e20c20aa7c2b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6cb63340b16531b2ae290c46401d95b297ecce8f96c5ff018279800a21e4834c","name":"Effie Ratsou","registered_at":"2026-06-16T19:16:41Z","symbol":"NIM1149467","token_address":"0x39f8e2fd88e52c59a698222dd1daa6efb9d027b6","type":"artist","uuid":"55567dca-75f3-49ec-98f2-e20c20aa7c2b"}
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 0x6cb63340b16531b2ae290c46401d95b297ecce8f96c5ff018279800a21e4834c. 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/55567dca-75f3-49ec-98f2-e20c20aa7c2b.json and https://artists.proofprofile.net/proofs/artist/55567dca-75f3-49ec-98f2-e20c20aa7c2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6cb63340b16531b2ae290c46401d95b297ecce8f96c5ff018279800a21e4834c","name":"Effie Ratsou","registered_at":"2026-06-16T19:16:41Z","symbol":"NIM1149467","token_address":"0x39f8e2fd88e52c59a698222dd1daa6efb9d027b6","type":"artist","uuid":"55567dca-75f3-49ec-98f2-e20c20aa7c2b"}
album: Twins (Music for Cinema and Theatre)
  type: MusicAlbum
  date published: 2013-01-21
album: Poliorkia (Original Motion Picture Score)
  type: MusicAlbum
  date published: 2019-01-30
  track: Dyskoloi Kairoi
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156038
    explicit: false
    by artist: Effie Ratsou
    in album: Poliorkia (Original Motion Picture Score)
      type: MusicAlbum
      date published: 2019-01-30
    genre: entehno
    genre: laïko
    isrc code: GRFM11900059
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:21:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x554a2d733261c45d665f6207377dea22cf2d16b0847b99748aee576f874c031b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRFM11900059
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x554a2d733261c45d665f6207377dea22cf2d16b0847b99748aee576f874c031b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GRFM11900059.
      date published: 2026-07-06T01:25:57Z
    audio: Dyskoloi Kairoi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.311
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.442
      additional property: Energy
        type: PropertyValue
        value: 0.317
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.776
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.293
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.842
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ena Nisi (Opening Titles Song for the Motion Picture "PENTE")
  type: MusicAlbum
  date published: 2024-07-10