Markos Chaidemenos
type: MusicGroup
popularity: 16
followers: 776
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf76bd28c2c12aefbe5cdaab804b9cb7ce21c9aea878995bacda0cc69cfb22e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40f1bf6b-1a49-435d-983f-c72f84925bf4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40f1bf6b-1a49-435d-983f-c72f84925bf4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40f1bf6b-1a49-435d-983f-c72f84925bf4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf76bd28c2c12aefbe5cdaab804b9cb7ce21c9aea878995bacda0cc69cfb22e3","name":"Markos Chaidemenos","registered_at":"2026-06-14T11:17:36Z","symbol":"NIM0436114","token_address":"0x5e644cd642e3551ec8db029dbd0b0340fe1b400d","type":"artist","uuid":"40f1bf6b-1a49-435d-983f-c72f84925bf4"}
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 0xaf76bd28c2c12aefbe5cdaab804b9cb7ce21c9aea878995bacda0cc69cfb22e3. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40f1bf6b-1a49-435d-983f-c72f84925bf4.json and https://artists.proofprofile.net/proofs/artist/40f1bf6b-1a49-435d-983f-c72f84925bf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
  text: {"copyright_id":"0xaf76bd28c2c12aefbe5cdaab804b9cb7ce21c9aea878995bacda0cc69cfb22e3","name":"Markos Chaidemenos","registered_at":"2026-06-14T11:17:36Z","symbol":"NIM0436114","token_address":"0x5e644cd642e3551ec8db029dbd0b0340fe1b400d","type":"artist","uuid":"40f1bf6b-1a49-435d-983f-c72f84925bf4"}
album: Remains (Live)
  type: MusicAlbum
  date published: 2019-02-12
album: McModal (Live)
  type: MusicAlbum
  date published: 2020-05-02
album: Aai (Live)
  type: MusicAlbum
  date published: 2020-06-09
album: New Era (Live at the Zoo)
  type: MusicAlbum
  date published: 2020-07-21
album: 33
  type: MusicAlbum
  date published: 2021-01-10
album: Caravan
  type: MusicAlbum
  date published: 2021-02-22
album: Caravan
  type: MusicAlbum
  date published: 2021-04-03
album: 33
  type: MusicAlbum
  date published: 2021-10-04
  track: 33
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286150
    explicit: false
    by artist: Markos Chaidemenos
    in album: 33
      type: MusicAlbum
      date published: 2021-10-04
    isrc code: USHM92134666
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T13:40:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa48478f157e83a6aea23298f290f9dabbf8e8d5f48968a946947ffb2ecdfb10a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92134666
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T14:19:48Z
    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 0xa48478f157e83a6aea23298f290f9dabbf8e8d5f48968a946947ffb2ecdfb10a. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USHM92134666.
      date published: 2026-07-11T14:19:48Z
    audio: 33
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.644
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.364
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.78
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.928
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.374
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.101
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Caravan
  type: MusicAlbum
  date published: 2021-11-24
album: The Loss (from "Maestro in Blue")
  type: MusicAlbum
  date published: 2023-03-06
album: The Day After
  type: MusicAlbum
  date published: 2024-01-04
album: Remains
  type: MusicAlbum
  date published: 2024-02-15
album: The Day After
  type: MusicAlbum
  date published: 2024-03-04