Kostantis Papakonstantinou
type: MusicGroup
genre: entehno
popularity: 16
followers: 1807
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7167f6c6e3446a1e0b731e08b272fbb21a9a73f267cba6c2b5174e79257a982
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7167f6c6e3446a1e0b731e08b272fbb21a9a73f267cba6c2b5174e79257a982","name":"Kostantis Papakonstantinou","registered_at":"2026-06-15T04:55:36Z","symbol":"NIM0688585","token_address":"0x0b4f1b2d541da80bcd894dbcb9fb35b4c0905658","type":"artist","uuid":"e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8"}
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 0xf7167f6c6e3446a1e0b731e08b272fbb21a9a73f267cba6c2b5174e79257a982. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8.json and https://artists.proofprofile.net/proofs/artist/e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xf7167f6c6e3446a1e0b731e08b272fbb21a9a73f267cba6c2b5174e79257a982","name":"Kostantis Papakonstantinou","registered_at":"2026-06-15T04:55:36Z","symbol":"NIM0688585","token_address":"0x0b4f1b2d541da80bcd894dbcb9fb35b4c0905658","type":"artist","uuid":"e80dd6ce-ab0e-4397-a2c4-e0c38558d2f8"}
album: Happy Birthday (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2018-02-12
album: The Weight of the Sea
  type: MusicAlbum
  date published: 2020-01-17
album: The Weight of the Sea
  type: MusicAlbum
  date published: 2020-01-17
album: Smuggling Hendrix
  type: MusicAlbum
  date published: 2020-03-13
album: Smuggling Hendrix
  type: MusicAlbum
  date published: 2020-03-13
album: Sikonomai poli proi
  type: MusicAlbum
  date published: 2020-05-29
album: Sikonomai poli proi
  type: MusicAlbum
  date published: 2020-05-29
album: Before Dawn
  type: MusicAlbum
  date published: 2020-07-15
album: Before Dawn
  type: MusicAlbum
  date published: 2020-07-15
  track: Agapisa tin pou karkias
    type: MusicRecording
    duration: PT5M13S
    duration ms: 313024
    explicit: false
    by artist: Kostantis Papakonstantinou
    in album: Before Dawn
      type: MusicAlbum
      date published: 2020-07-15
    genre: entehno
    isrc code: SE6HN2094083
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T17:36:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa9e5e939ef7e17ed78aef5e7d822a1a4163febc8585dcd79c716415c5931087c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2094083
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0xa9e5e939ef7e17ed78aef5e7d822a1a4163febc8585dcd79c716415c5931087c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE6HN2094083.
      date published: 2026-07-17T19:12:23Z
    audio: Agapisa tin pou karkias
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.008
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.789
      additional property: Energy
        type: PropertyValue
        value: 0.213
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.913
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.548
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.559
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.308
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Dam
  type: MusicAlbum
  date published: 2020-09-03
album: The Archaeologist
  type: MusicAlbum
  date published: 2020-11-13
album: The Archaeologist
  type: MusicAlbum
  date published: 2020-11-13
album: Memento (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2021-09-24
  track: Memento
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254000
    explicit: false
    by artist: Kostantis Papakonstantinou
    in album: Memento (Original Motion Picture Soundtrack)
      type: MusicAlbum
      date published: 2021-09-24
    genre: entehno
    isrc code: SE6XW2190109
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T20:05:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x526781d4b08b1d862cd2cd7a4be9ac6893ff2b6ea910e07cbcad339ffbc876c4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958058
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958058
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2190109
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T20:20:34Z
    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 0x526781d4b08b1d862cd2cd7a4be9ac6893ff2b6ea910e07cbcad339ffbc876c4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SE6XW2190109.
      date published: 2026-07-14T20:20:34Z
    audio: Memento
album: Egeiran ta klonaria mou
album: Islands on the Edge
album: Dystopia

Memento
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 106.01
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: 0.577
additional property: Energy
  type: PropertyValue
  value: 0.452
additional property: Speechiness
  type: PropertyValue
  value: 0.025
additional property: Acousticness
  type: PropertyValue
  value: 0.616
additional property: Instrumentalness
  type: PropertyValue
  value: 0.858
additional property: Liveness
  type: PropertyValue
  value: 0.238
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.256
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.019
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Minor

Egeiran ta klonaria mou
type: MusicAlbum
date published: 2022-05-13

Islands on the Edge
type: MusicAlbum
date published: 2023-09-12

Dystopia
type: MusicAlbum
date published: 2023-09-26