Marr 3134
type: MusicGroup
popularity: 9
followers: 166
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56898f754fbda73926d3edaf50f9815445021ceeaf4d8d6fdce70ef147147660
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad0328e2-2f14-49f0-bf3c-207c9fefaaa4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad0328e2-2f14-49f0-bf3c-207c9fefaaa4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad0328e2-2f14-49f0-bf3c-207c9fefaaa4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56898f754fbda73926d3edaf50f9815445021ceeaf4d8d6fdce70ef147147660","name":"Marr 3134","registered_at":"2026-06-20T10:24:27Z","symbol":"NIM1590519","token_address":"0x24c6e8194157a866699260e1017d5d56820022bc","type":"artist","uuid":"ad0328e2-2f14-49f0-bf3c-207c9fefaaa4"}
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 0x56898f754fbda73926d3edaf50f9815445021ceeaf4d8d6fdce70ef147147660. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad0328e2-2f14-49f0-bf3c-207c9fefaaa4.json and https://artists.proofprofile.net/proofs/artist/ad0328e2-2f14-49f0-bf3c-207c9fefaaa4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x56898f754fbda73926d3edaf50f9815445021ceeaf4d8d6fdce70ef147147660","name":"Marr 3134","registered_at":"2026-06-20T10:24:27Z","symbol":"NIM1590519","token_address":"0x24c6e8194157a866699260e1017d5d56820022bc","type":"artist","uuid":"ad0328e2-2f14-49f0-bf3c-207c9fefaaa4"}
album: 5 Cars
  type: MusicAlbum
  date published: 2019-08-10
album: 5 Cars
  type: MusicAlbum
  date published: 2019-08-10
album: No Words
  type: MusicAlbum
  date published: 2020-05-05
album: No Words
  type: MusicAlbum
  date published: 2020-05-05
album: Run Mandown
  type: MusicAlbum
  date published: 2020-06-20
album: Run Mandown
  type: MusicAlbum
  date published: 2020-06-20
album: What's the Deal
  type: MusicAlbum
  date published: 2022-08-28
album: What's the Deal
  type: MusicAlbum
  date published: 2022-08-28
album: Winnen of Verliezen
  type: MusicAlbum
  date published: 2023-01-01
album: Winnen of Verliezen
  type: MusicAlbum
  date published: 2023-01-01
album: Baddie
  type: MusicAlbum
  date published: 2023-06-23
album: Voel Me
  type: MusicAlbum
  date published: 2023-11-03
album: Voel Me
  type: MusicAlbum
  date published: 2023-11-03
album: Criminal One Mil
  type: MusicAlbum
  date published: 2024-01-01
  track: Criminal One Mil
    type: MusicRecording
    duration: PT2M12S
    duration ms: 132413
    explicit: true
    by artist: Marr 3134
    in album: Criminal One Mil
      type: MusicAlbum
      date published: 2024-01-01
    isrc code: NLL8M2303335
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T08:03:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x18ffe17ca0e771d88ca787eeca656644ec12d891be6218065325f5fc0bcbd14a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLL8M2303335
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x18ffe17ca0e771d88ca787eeca656644ec12d891be6218065325f5fc0bcbd14a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLL8M2303335.
      date published: 2026-07-05T10:01:46Z
    audio: Criminal One Mil
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.998
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.643
      additional property: Energy
        type: PropertyValue
        value: 0.183
      additional property: Speechiness
        type: PropertyValue
        value: 0.481
      additional property: Acousticness
        type: PropertyValue
        value: 0.335
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.195
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.066
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Criminal One Mil
  type: MusicAlbum
  date published: 2024-01-01
album: Geen Keus
  type: MusicAlbum
  date published: 2024-02-18
album: Geen Keus
  type: MusicAlbum
  date published: 2024-02-18
album: De Juiste
  type: MusicAlbum
  date published: 2024-06-18
album: Freestyle
  type: MusicAlbum
  date published: 2024-08-22
album: Anaconda
  type: MusicAlbum
  date published: 2024-09-12
album: Regen
  type: MusicAlbum
  date published: 2025-02-24
  track: Hosselen in the morning & night
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120839
    explicit: true
    by artist: Marr 3134
    in album: Regen
      type: MusicAlbum
      date published: 2025-02-24
    isrc code: QZHN62508300
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T08:38:42+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Hosselen in the morning & night
  track: Snelheid

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xed68fc367d72da284a5e97a8ab801cba0ae1e11673ebf623a529f630f4053653

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957819

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957819

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62508300

OTSTimestamp
type: PropertyValue
value: 2026-07-13T07:53:33Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68fc367d72da284a5e97a8ab801cba0ae1e11673ebf623a529f630f4053653. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHN62508300.
date published: 2026-07-13T07:53:33Z

Hosselen in the morning & night
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 143.01
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.86
additional property: Energy
  type: PropertyValue
  value: 0.47
additional property: Speechiness
  type: PropertyValue
  value: 0.531
additional property: Acousticness
  type: PropertyValue
  value: 0.365
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.162
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.391
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.607
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Minor

Snelheid
type: MusicRecording
duration: PT2M9S
duration ms: 129071
explicit: true
by artist: Marr 3134
in album: Regen
  type: MusicAlbum
  date published: 2025-02-24
isrc code: QZHN62508303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T02:30:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa42b2500eaa1140d6e4b951a602f90e4d43d3e1e2933c12c0a913ddfa133e083
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/QZHN62508303
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b2500eaa1140d6e4b951a602f90e4d43d3e1e2933c12c0a913ddfa133e083. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62508303.
  date published: 2026-07-06T06:56:49Z
audio: Snelheid
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 68.844
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.698
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.402
  additional property: Acousticness
    type: PropertyValue
    value: 0.014
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.023
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.686
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major