Marklen
type: MusicGroup
genre: afro house
genre: deep house
genre: organic house
popularity: 5
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76f9480d7d79b64e1c42bc686e784c26f0504764dd83593a14cd82bd01657d52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba078266-dc6b-444b-99d4-6a186eaec64f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba078266-dc6b-444b-99d4-6a186eaec64f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba078266-dc6b-444b-99d4-6a186eaec64f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
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 0x76f9480d7d79b64e1c42bc686e784c26f0504764dd83593a14cd82bd01657d52. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba078266-dc6b-444b-99d4-6a186eaec64f.json and https://artists.proofprofile.net/proofs/artist/ba078266-dc6b-444b-99d4-6a186eaec64f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:15:05Z
album: Time Travel
  type: MusicAlbum
  date published: 2022-11-18
album: You & Me
  type: MusicAlbum
  date published: 2023-01-25
album: La Musica
  type: MusicAlbum
  date published: 2023-08-25
album: Wonder
  type: MusicAlbum
  date published: 2023-09-28
album: Milky Way
  type: MusicAlbum
  date published: 2023-12-15
  track: Milky Way
    type: MusicRecording
    duration: PT7M26S
    duration ms: 446680
    explicit: false
    by artist: Marklen
    in album: Milky Way
      type: MusicAlbum
      date published: 2023-12-15
    genre: afro house
    genre: deep house
    genre: organic house
    isrc code: US83Z2344665
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:00:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x89dc525058fb37f585a3a426d884233ba8606dc0c602c0c41bfced164945ec72
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958985
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958985
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2344665
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:00:53Z
    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 0x89dc525058fb37f585a3a426d884233ba8606dc0c602c0c41bfced164945ec72. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:53Z), 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/US83Z2344665.
      date published: 2026-07-21T11:00:53Z
    audio: Milky Way
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.009
      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: 0.781
      additional property: Energy
        type: PropertyValue
        value: 0.845
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.865
      additional property: Liveness
        type: PropertyValue
        value: 0.05
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.141
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.044
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Yahaa
  type: MusicAlbum
  date published: 2024-01-12
album: Talk About
  type: MusicAlbum
  date published: 2024-08-30
album: Touch Me
  type: MusicAlbum
  date published: 2025-06-06
album: I Want It
  type: MusicAlbum
  date published: 2025-10-02