Angelos Mavromatis
type: MusicGroup
popularity: 2
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2801920a2cb2e6d856327fccef5468df73440cadafb29ccd1a5c287cf539924
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b217329e-3e4f-4c9e-8e87-59ddf8012d9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b217329e-3e4f-4c9e-8e87-59ddf8012d9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b217329e-3e4f-4c9e-8e87-59ddf8012d9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2801920a2cb2e6d856327fccef5468df73440cadafb29ccd1a5c287cf539924","name":"Angelos Mavromatis","registered_at":"2026-06-20T12:43:46Z","symbol":"NIM1614923","token_address":"0xf54c540d740ce7f2c2905207141c0813995ab5ba","type":"artist","uuid":"b217329e-3e4f-4c9e-8e87-59ddf8012d9e"}
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 0xd2801920a2cb2e6d856327fccef5468df73440cadafb29ccd1a5c287cf539924. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b217329e-3e4f-4c9e-8e87-59ddf8012d9e.json and https://artists.proofprofile.net/proofs/artist/b217329e-3e4f-4c9e-8e87-59ddf8012d9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd2801920a2cb2e6d856327fccef5468df73440cadafb29ccd1a5c287cf539924","name":"Angelos Mavromatis","registered_at":"2026-06-20T12:43:46Z","symbol":"NIM1614923","token_address":"0xf54c540d740ce7f2c2905207141c0813995ab5ba","type":"artist","uuid":"b217329e-3e4f-4c9e-8e87-59ddf8012d9e"}
album: A Walk in the Clouds
  type: MusicAlbum
  date published: 2018-10-11
album: Anger
  type: MusicAlbum
  date published: 2019-10-30
album: Epic This Way
  type: MusicAlbum
  date published: 2020-01-17
album: Lonestar
  type: MusicAlbum
  date published: 2021-12-06
album: Anger
  type: MusicAlbum
  date published: 2022-09-08
  track: Anger
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177228
    explicit: false
    by artist: Angelos Mavromatis
    in album: Anger
      type: MusicAlbum
      date published: 2022-09-08
    isrc code: GX38U2290637
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T03:34:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8615ee81faddb66cc78cd5fe1aa4a3b5e3d85eda360b326fc31109bea537107
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958959
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958959
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX38U2290637
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:51:22Z
    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 0xb8615ee81faddb66cc78cd5fe1aa4a3b5e3d85eda360b326fc31109bea537107. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GX38U2290637.
      date published: 2026-07-21T03:51:22Z
    audio: Anger
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.887
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.484
      additional property: Energy
        type: PropertyValue
        value: 0.779
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.024
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.945
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.096
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.729
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor