Marcel Josan
type: MusicGroup
popularity: 7
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d8eeb0c0c422aff1f65c7aa217eebdf94df4650c4e6c43a0b0e1ddb9f53d9e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2d81142-0ca5-4a33-b02f-5db4406ba54b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2d81142-0ca5-4a33-b02f-5db4406ba54b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2d81142-0ca5-4a33-b02f-5db4406ba54b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d8eeb0c0c422aff1f65c7aa217eebdf94df4650c4e6c43a0b0e1ddb9f53d9e8","name":"Marcel Josan","registered_at":"2026-06-21T14:17:58Z","symbol":"NIM1945609","token_address":"0x740959557272babfa3e2ede332353d85369289c9","type":"artist","uuid":"f2d81142-0ca5-4a33-b02f-5db4406ba54b"}
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 0x8d8eeb0c0c422aff1f65c7aa217eebdf94df4650c4e6c43a0b0e1ddb9f53d9e8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2d81142-0ca5-4a33-b02f-5db4406ba54b.json and https://artists.proofprofile.net/proofs/artist/f2d81142-0ca5-4a33-b02f-5db4406ba54b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x8d8eeb0c0c422aff1f65c7aa217eebdf94df4650c4e6c43a0b0e1ddb9f53d9e8","name":"Marcel Josan","registered_at":"2026-06-21T14:17:58Z","symbol":"NIM1945609","token_address":"0x740959557272babfa3e2ede332353d85369289c9","type":"artist","uuid":"f2d81142-0ca5-4a33-b02f-5db4406ba54b"}
album: Time Of
  type: MusicAlbum
  date published: 2023-06-09
album: All of Us
  type: MusicAlbum
  date published: 2023-07-05
album: Mystic Melancholy
  type: MusicAlbum
  date published: 2023-07-14
album: Dragon Rider
  type: MusicAlbum
  date published: 2023-08-28
album: Ritmo
  type: MusicAlbum
  date published: 2023-09-11
album: Beauty of My Life
  type: MusicAlbum
  date published: 2023-09-22
album: Con Calura
  type: MusicAlbum
  date published: 2023-09-29
album: My Move
  type: MusicAlbum
  date published: 2023-09-29
album: Emerald Mirage
  type: MusicAlbum
  date published: 2023-10-09
album: Winter Place
  type: MusicAlbum
  date published: 2023-10-30
  track: Winter Place
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161496
    explicit: false
    by artist: Marcel Josan
    in album: Winter Place
      type: MusicAlbum
      date published: 2023-10-30
    isrc code: BGA472314180
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T12:37:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2dab8376369986b7063e55fc2765dc216efd09c6d84d39b6a55bd395f4374a1a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958547
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958547
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472314180
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:44:05Z
    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 0x2dab8376369986b7063e55fc2765dc216efd09c6d84d39b6a55bd395f4374a1a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BGA472314180.
      date published: 2026-07-18T12:44:05Z
    audio: Winter Place
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.999
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.848
      additional property: Energy
        type: PropertyValue
        value: 0.637
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.845
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.512
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.08
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sweet Limits
  type: MusicAlbum
  date published: 2023-11-03
album: Souls on the Wall
  type: MusicAlbum
  date published: 2023-11-24