Marcus Sur
type: MusicGroup
popularity: 4
followers: 509
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cf46155c36a7351cd8d2e2058861613ddc4ecd737cad82427caaccc9696b727
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75663ef2-0637-429d-8f46-c3b13fa94da3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75663ef2-0637-429d-8f46-c3b13fa94da3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75663ef2-0637-429d-8f46-c3b13fa94da3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4cf46155c36a7351cd8d2e2058861613ddc4ecd737cad82427caaccc9696b727","name":"Marcus Sur","registered_at":"2026-06-17T06:37:00Z","symbol":"NIM1311805","token_address":"0xebb7d720fa03aa27017ec227925f146af14c82ce","type":"artist","uuid":"75663ef2-0637-429d-8f46-c3b13fa94da3"}
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 0x4cf46155c36a7351cd8d2e2058861613ddc4ecd737cad82427caaccc9696b727. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75663ef2-0637-429d-8f46-c3b13fa94da3.json and https://artists.proofprofile.net/proofs/artist/75663ef2-0637-429d-8f46-c3b13fa94da3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4cf46155c36a7351cd8d2e2058861613ddc4ecd737cad82427caaccc9696b727","name":"Marcus Sur","registered_at":"2026-06-17T06:37:00Z","symbol":"NIM1311805","token_address":"0xebb7d720fa03aa27017ec227925f146af14c82ce","type":"artist","uuid":"75663ef2-0637-429d-8f46-c3b13fa94da3"}
album: Down with the Ship
  type: MusicAlbum
  date published: 2009-10-02
album: If The Tiger Eats The Lotus Flower
  type: MusicAlbum
  date published: 2010-12-03
album: If the Tiger Eats the Lotus Flower
  type: MusicAlbum
  date published: 2010-12-03
album: Golden Handshake EP
  type: MusicAlbum
  date published: 2011-12-02
album: The Man Who Stole the Night
  type: MusicAlbum
  date published: 2012-06-01
album: The Man Who Stole The Night
  type: MusicAlbum
  date published: 2012-06-01
album: Nebelstorch
  type: MusicAlbum
  date published: 2012-06-28
album: Nebelstorch
  type: MusicAlbum
  date published: 2012-06-28
album: Zachow
  type: MusicAlbum
  date published: 2013-07-29
album: Zachow
  type: MusicAlbum
  date published: 2013-09-30
album: We Work
  type: MusicAlbum
  date published: 2014-04-14
album: We Work
  type: MusicAlbum
  date published: 2014-05-02
album: In the Night
  type: MusicAlbum
  date published: 2014-11-03
album: Urge EP
  type: MusicAlbum
  date published: 2015-06-12
album: Urge - EP
  type: MusicAlbum
  date published: 2015-06-12
album: Purpur EP
  type: MusicAlbum
  date published: 2016-05-23
album: Purpur EP
  type: MusicAlbum
  date published: 2016-05-23
album: Secrets From Another Place EP
  type: MusicAlbum
  date published: 2016-12-09
album: The Traveller EP
  type: MusicAlbum
  date published: 2017-01-30
album: The Traveller EP
  type: MusicAlbum
  date published: 2017-02-27
track: In the Night - Eekkoo Remix
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363308
  explicit: false
  by artist: Golden Parazyth
  by artist: Marcus Sur
  by artist: Mark Jackus
  by artist: Eekkoo
  in album: Dark Stars 002
    type: MusicAlbum
    date published: 2016-11-28
  isrc code: GBTEZ1601018
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T09:13:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa7dc315cc6dc127cf30235cd1e0aba95a8d05b8e46e5425548878e365b1b0d1d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960379
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960379
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBTEZ1601018
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:25:34Z
  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 0xa7dc315cc6dc127cf30235cd1e0aba95a8d05b8e46e5425548878e365b1b0d1d. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBTEZ1601018.
    date published: 2026-07-31T09:25:34Z
  audio: In the Night - Eekkoo Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.639
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.796
    additional property: Energy
      type: PropertyValue
      value: 0.857
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.007
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.881
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.042
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.808
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major