Marcos d'Arc
type: MusicGroup
popularity: 9
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57e691c977bd7a5d5e2d331a0591c2841c1bbb5dc9bd85537d83873e2c29f74e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5159c9dd-709e-4b0e-b031-205ce96530f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5159c9dd-709e-4b0e-b031-205ce96530f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5159c9dd-709e-4b0e-b031-205ce96530f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57e691c977bd7a5d5e2d331a0591c2841c1bbb5dc9bd85537d83873e2c29f74e","name":"Marcos d'Arc","registered_at":"2026-06-16T17:55:16Z","symbol":"NIM1130041","token_address":"0x1407257d199eb61750adccb78b63c7ccb920d56b","type":"artist","uuid":"5159c9dd-709e-4b0e-b031-205ce96530f3"}
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 0x57e691c977bd7a5d5e2d331a0591c2841c1bbb5dc9bd85537d83873e2c29f74e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5159c9dd-709e-4b0e-b031-205ce96530f3.json and https://artists.proofprofile.net/proofs/artist/5159c9dd-709e-4b0e-b031-205ce96530f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x57e691c977bd7a5d5e2d331a0591c2841c1bbb5dc9bd85537d83873e2c29f74e","name":"Marcos d'Arc","registered_at":"2026-06-16T17:55:16Z","symbol":"NIM1130041","token_address":"0x1407257d199eb61750adccb78b63c7ccb920d56b","type":"artist","uuid":"5159c9dd-709e-4b0e-b031-205ce96530f3"}
album: 1:45
  type: MusicAlbum
  date published: 2022-08-12
album: Indigo
  type: MusicAlbum
  date published: 2024-02-02
album: LOVE YOU IN THIS SPACE
  type: MusicAlbum
  date published: 2024-10-26
  track: LOVE YOU IN THIS SPACE
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205007
    explicit: false
    by artist: Marcos d'Arc
    in album: LOVE YOU IN THIS SPACE
      type: MusicAlbum
      date published: 2024-10-26
    isrc code: QT2VB2470704
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:15:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc8725ee342674178a284ea3401aaac993bf29a7404bc85bcf333c4e33598ff0a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT2VB2470704
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xc8725ee342674178a284ea3401aaac993bf29a7404bc85bcf333c4e33598ff0a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QT2VB2470704.
      date published: 2026-07-05T19:27:56Z
    audio: LOVE YOU IN THIS SPACE
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.055
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.615
      additional property: Energy
        type: PropertyValue
        value: 0.533
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.411
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.192
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.499
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.259
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: SEE THE LOWS
  type: MusicAlbum
  date published: 2024-12-13
  track: SEE THE LOWS
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182000
    explicit: false
    by artist: Marcos d'Arc
    in album: SEE THE LOWS
      type: MusicAlbum
      date published: 2024-12-13
    isrc code: QZVEM1884278
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:21:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x17ef1583b5440b0a9b08f0deaabf5a50b6a942ffbe208ae5f4c859463a937771
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM1884278
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 0x17ef1583b5440b0a9b08f0deaabf5a50b6a942ffbe208ae5f4c859463a937771. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZVEM1884278.
      date published: 2026-07-15T17:59:52Z
    audio: SEE THE LOWS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.048
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.627
      additional property: Energy
        type: PropertyValue
        value: 0.622
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.15
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: THROW YOUR LIFE AWAY
album: MONEY AND FAME
album: Pride (Left of We).m4a
album: Leeches
album: Bad Thing
album: Intention
album: Theft and Agony

Liveness
type: PropertyValue
value: 0.144

Valence (Positivity)
type: PropertyValue
value: 0.105

Loudness (dB)
type: PropertyValue
value: -7.924

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

THROW YOUR LIFE AWAY
type: MusicAlbum
date published: 2025-01-02
track: THROW YOUR LIFE AWAY
  type: MusicRecording
  duration: PT2M4S
  duration ms: 124000
  explicit: false
  by artist: Marcos d'Arc
  in album: THROW YOUR LIFE AWAY
    type: MusicAlbum
    date published: 2025-01-02
  isrc code: QZPEW2515477
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T15:31:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x55c6fd1ee5c7d0e46504b34164e76b97b17508bbcf9bdbf49155f11a44f27628
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958169
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958169
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPEW2515477
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T16:16:18Z
  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 0x55c6fd1ee5c7d0e46504b34164e76b97b17508bbcf9bdbf49155f11a44f27628. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZPEW2515477.
    date published: 2026-07-15T16:16:18Z
  audio: THROW YOUR LIFE AWAY
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 180.427
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.188
    additional property: Energy
      type: PropertyValue
      value: 0.524
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.128
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.354
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

MONEY AND FAME
type: MusicAlbum
date published: 2025-02-05

Pride (Left of We).m4a
type: MusicAlbum
date published: 2025-02-20

Leeches
type: MusicAlbum
date published: 2025-06-06

Bad Thing
type: MusicAlbum
date published: 2025-06-16

Intention
type: MusicAlbum
date published: 2025-09-04

Theft and Agony
type: MusicAlbum
date published: 2025-10-11