Nikos Douros
type: MusicGroup
genre: laïko
popularity: 4
followers: 271
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8dd075ce4cf8cf347c5add2c001d251076a4d018888a48c9d11c84e3831af214
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe5fb03c-416a-41ea-bb77-b8839f6694c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe5fb03c-416a-41ea-bb77-b8839f6694c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe5fb03c-416a-41ea-bb77-b8839f6694c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8dd075ce4cf8cf347c5add2c001d251076a4d018888a48c9d11c84e3831af214","name":"Nikos Douros","registered_at":"2026-06-21T18:27:29Z","symbol":"NIM1997690","token_address":"0x1cd0299e996472205119a264bb89e4f7162df665","type":"artist","uuid":"fe5fb03c-416a-41ea-bb77-b8839f6694c9"}
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 0x8dd075ce4cf8cf347c5add2c001d251076a4d018888a48c9d11c84e3831af214. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5fb03c-416a-41ea-bb77-b8839f6694c9.json and https://artists.proofprofile.net/proofs/artist/fe5fb03c-416a-41ea-bb77-b8839f6694c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x8dd075ce4cf8cf347c5add2c001d251076a4d018888a48c9d11c84e3831af214","name":"Nikos Douros","registered_at":"2026-06-21T18:27:29Z","symbol":"NIM1997690","token_address":"0x1cd0299e996472205119a264bb89e4f7162df665","type":"artist","uuid":"fe5fb03c-416a-41ea-bb77-b8839f6694c9"}
album: Ferte Mou Na Pio
  type: MusicAlbum
  date published: 2017-05-31
album: Ferte Mou Na Pio
  type: MusicAlbum
  date published: 2017-05-31
album: I Agapi Afti (Giorgos Koutsogeorgakis Mix)
  type: MusicAlbum
  date published: 2018-07-06
album: I Agapi Afti (Giorgos Koutsogeorgakis Remix)
  type: MusicAlbum
  date published: 2018-07-13
album: 7
  type: MusicAlbum
  date published: 2020-06-01
  track: 7
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194304
    explicit: false
    by artist: Nikos Douros
    in album: 7
      type: MusicAlbum
      date published: 2020-06-01
    genre: laïko
    isrc code: FR96X2045114
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T07:57:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb4e831c52606d592f810a2d5e08f45745937414b7bd7e0e4b2c671d46c30d36
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958700
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958700
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2045114
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T08:09:50Z
    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 0xeb4e831c52606d592f810a2d5e08f45745937414b7bd7e0e4b2c671d46c30d36. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR96X2045114.
      date published: 2026-07-19T08:09:50Z
    audio: 7
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.008
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.704
      additional property: Energy
        type: PropertyValue
        value: 0.903
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.132
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.805
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.882
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Oxi Den Eimai Stin Kaliteri Mou Fasi
  type: MusicAlbum
  date published: 2020-12-01
album: Zise Ston Kosmo Sou
  type: MusicAlbum
  date published: 2021-07-09
album: 1/4
  type: MusicAlbum
  date published: 2022-04-01
album: Koita Koita
  type: MusicAlbum
  date published: 2022-07-25
album: Etiketa
  type: MusicAlbum
  date published: 2023-05-23
album: Eisai Trela
  type: MusicAlbum
  date published: 2023-12-06
album: Eisai Trela
  type: MusicAlbum
  date published: 2023-12-06