Marcel Roberg
type: MusicGroup
popularity: 8
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa568e7377ac1d0e368ef5603300134c7f6df8e93a0a806af24d86b1fb7ea2977
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca9d6173-4463-4750-a8b0-668b53fe4766.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca9d6173-4463-4750-a8b0-668b53fe4766.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca9d6173-4463-4750-a8b0-668b53fe4766
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa568e7377ac1d0e368ef5603300134c7f6df8e93a0a806af24d86b1fb7ea2977","name":"Marcel Roberg","registered_at":"2026-06-20T23:07:16Z","symbol":"NIM1742839","token_address":"0xfa0dc839833d611d7cac7e17b51d0379a3e63972","type":"artist","uuid":"ca9d6173-4463-4750-a8b0-668b53fe4766"}
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 0xa568e7377ac1d0e368ef5603300134c7f6df8e93a0a806af24d86b1fb7ea2977. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca9d6173-4463-4750-a8b0-668b53fe4766.json and https://artists.proofprofile.net/proofs/artist/ca9d6173-4463-4750-a8b0-668b53fe4766.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xa568e7377ac1d0e368ef5603300134c7f6df8e93a0a806af24d86b1fb7ea2977","name":"Marcel Roberg","registered_at":"2026-06-20T23:07:16Z","symbol":"NIM1742839","token_address":"0xfa0dc839833d611d7cac7e17b51d0379a3e63972","type":"artist","uuid":"ca9d6173-4463-4750-a8b0-668b53fe4766"}
album: Robot Soul
  type: MusicAlbum
  date published: 2023-06-09
album: Unlikely Action
  type: MusicAlbum
  date published: 2023-06-22
album: Labná
  type: MusicAlbum
  date published: 2023-06-30
  track: Labná
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158869
    explicit: false
    by artist: Marcel Roberg
    in album: Labná
      type: MusicAlbum
      date published: 2023-06-30
    isrc code: BGA472317268
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:44:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x13c96aca19c83d595cea918a8e0f95b682464e5e8c2a43e65d6df2b3c7a77ad7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472317268
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x13c96aca19c83d595cea918a8e0f95b682464e5e8c2a43e65d6df2b3c7a77ad7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472317268 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: Labná
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.993
      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: 0.808
      additional property: Energy
        type: PropertyValue
        value: 0.784
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.933
      additional property: Liveness
        type: PropertyValue
        value: 0.067
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.53
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.741
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Solar Spectrum
  type: MusicAlbum
  date published: 2023-08-02
album: Home Fever
  type: MusicAlbum
  date published: 2023-08-07
album: Lake of Lockness
  type: MusicAlbum
  date published: 2023-08-09
  track: Lake of Lockness
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156293
    explicit: false
    by artist: Marcel Roberg
    in album: Lake of Lockness
      type: MusicAlbum
      date published: 2023-08-09
    isrc code: BGA472313452
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:09:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a139b3139168a0d14d3fe064945f8003c801a6c4ee49f5bb68e2f5eab229c2a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958746
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958746
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472313452
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T15:36:35Z
    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 0x2a139b3139168a0d14d3fe064945f8003c801a6c4ee49f5bb68e2f5eab229c2a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472313452 — a six-check JSON result.
      date published: 2026-07-19T15:36:35Z
    audio: Lake of Lockness
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.984
      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: 0.758
      additional property: Energy
        type: PropertyValue
        value: 0.815
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Free Your Mind
album: Everybody Jump
album: My Everything
album: Ritual Dance
album: Antiope
album: Electric Universe
album: Mystic Mirage

Acousticness
type: PropertyValue
value: 0.002

Instrumentalness
type: PropertyValue
value: 0.858

Liveness
type: PropertyValue
value: 0.114

Valence (Positivity)
type: PropertyValue
value: 0.326

Loudness (dB)
type: PropertyValue
value: -9.858

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Free Your Mind
type: MusicAlbum
date published: 2023-08-18

Everybody Jump
type: MusicAlbum
date published: 2023-08-30

My Everything
type: MusicAlbum
date published: 2023-09-08

Ritual Dance
type: MusicAlbum
date published: 2023-10-23

Antiope
type: MusicAlbum
date published: 2023-10-27

Electric Universe
type: MusicAlbum
date published: 2023-10-27

Mystic Mirage
type: MusicAlbum
date published: 2023-11-17