Maria Karlaki
type: MusicGroup
genre: laïko
popularity: 5
followers: 609
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca61dfbc0021f43e7a34d08a0ee1e96661163ec81ec6b6681e18daf3f4d9cccc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2c6cf63-f7ff-4992-b775-2956e86040fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2c6cf63-f7ff-4992-b775-2956e86040fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2c6cf63-f7ff-4992-b775-2956e86040fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xca61dfbc0021f43e7a34d08a0ee1e96661163ec81ec6b6681e18daf3f4d9cccc","name":"Maria Karlaki","registered_at":"2026-06-20T19:54:43Z","symbol":"NIM1697856","token_address":"0x2b63a700801105dbef4fcc9cb8e8a7f547488602","type":"artist","uuid":"c2c6cf63-f7ff-4992-b775-2956e86040fe"}
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 0xca61dfbc0021f43e7a34d08a0ee1e96661163ec81ec6b6681e18daf3f4d9cccc. 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/c2c6cf63-f7ff-4992-b775-2956e86040fe.json and https://artists.proofprofile.net/proofs/artist/c2c6cf63-f7ff-4992-b775-2956e86040fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xca61dfbc0021f43e7a34d08a0ee1e96661163ec81ec6b6681e18daf3f4d9cccc","name":"Maria Karlaki","registered_at":"2026-06-20T19:54:43Z","symbol":"NIM1697856","token_address":"0x2b63a700801105dbef4fcc9cb8e8a7f547488602","type":"artist","uuid":"c2c6cf63-f7ff-4992-b775-2956e86040fe"}
album: Ise Mia Sinithia
  type: MusicAlbum
  date published: 2011-09-26
album: Enstikto
  type: MusicAlbum
  date published: 2012-02-23
album: Eimai Gia Mena
  type: MusicAlbum
  date published: 2012-12-10
album: Eimai Gia Mena (Remix)
  type: MusicAlbum
  date published: 2013-03-25
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  date published: 2014-02-10
album: Pos Ginetai
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  type: MusicAlbum
  date published: 2016-12-16
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  type: MusicAlbum
  date published: 2018-01-29
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  date published: 2019-02-07
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2020-04-13
album: Rina Katerina (Remix)
  type: MusicAlbum
  date published: 2020-04-20
album: Rina Katerina (Remix)
  type: MusicAlbum
  date published: 2020-04-20
album: Magia Mou 'His Kani
  type: MusicAlbum
  date published: 2020-06-16
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  type: MusicAlbum
  date published: 2020-06-16
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  date published: 2021-04-02
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  type: MusicAlbum
  date published: 2021-04-02
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  type: MusicAlbum
  date published: 2021-11-24
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  type: MusicAlbum
  date published: 2021-11-24
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  type: MusicAlbum
  date published: 2022-02-28
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  type: MusicAlbum
  date published: 2022-05-27
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  type: MusicAlbum
  date published: 2023-02-24
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  type: MusicAlbum
  date published: 2023-12-01
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  type: MusicAlbum
  date published: 2024-05-23
album: Ston Agio Romano
  type: MusicAlbum
  date published: 2025-05-16
  track: Ston Agio Romano
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208863
    explicit: false
    by artist: Maria Karlaki
    in album: Ston Agio Romano
      type: MusicAlbum
      date published: 2025-05-16
    genre: laïko
    isrc code: GRHV12500321
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T15:26:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8f8d228d5b44d156b38819a6a0229c755c1ab6b53d874357a7eed8e26316b42a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRHV12500321
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x8f8d228d5b44d156b38819a6a0229c755c1ab6b53d874357a7eed8e26316b42a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GRHV12500321.
      date published: 2026-07-16T16:14:30Z
    audio: Ston Agio Romano
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.98
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.71
      additional property: Energy
        type: PropertyValue
        value: 0.793
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.027

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.547

Valence (Positivity)
type: PropertyValue
value: 0.743

Loudness (dB)
type: PropertyValue
value: -5.981

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor