Mark Luv
type: MusicGroup
popularity: 4
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa02d8146545607e463b3ce259227b9d38fa57db0a5235089b82167d9dd3963bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91e9df3e-7408-4672-a09b-57fee1203496.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91e9df3e-7408-4672-a09b-57fee1203496
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa02d8146545607e463b3ce259227b9d38fa57db0a5235089b82167d9dd3963bc","name":"Mark Luv","registered_at":"2026-06-17T16:20:18Z","symbol":"NIM1450850","token_address":"0xf5456b5846fada966abfc9be368d0d379b1434b1","type":"artist","uuid":"91e9df3e-7408-4672-a09b-57fee1203496"}
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 0xa02d8146545607e463b3ce259227b9d38fa57db0a5235089b82167d9dd3963bc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91e9df3e-7408-4672-a09b-57fee1203496.json and https://artists.proofprofile.net/proofs/artist/91e9df3e-7408-4672-a09b-57fee1203496.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa02d8146545607e463b3ce259227b9d38fa57db0a5235089b82167d9dd3963bc","name":"Mark Luv","registered_at":"2026-06-17T16:20:18Z","symbol":"NIM1450850","token_address":"0xf5456b5846fada966abfc9be368d0d379b1434b1","type":"artist","uuid":"91e9df3e-7408-4672-a09b-57fee1203496"}
album: Moon
  type: MusicAlbum
  date published: 2018-03-01
album: LVM
  type: MusicAlbum
  date published: 2018-03-01
album: Dimmi Dove Sei
  type: MusicAlbum
  date published: 2018-04-02
album: Caipiroska
  type: MusicAlbum
  date published: 2018-09-05
album: Feeling
  type: MusicAlbum
  date published: 2019-01-04
track: Blood On The Cobblestones

Blood On The Cobblestones
type: MusicRecording
duration: PT2M35S
duration ms: 155066
explicit: false
by artist: Ghostface Killah
by artist: Adrian Younge
by artist: U-God
by artist: Inspectah Deck
by artist: Mark Luv
in album: Adrian Younge Presents: Twelve Reasons To Die
  type: MusicAlbum
  date published: 2013-04-16
genre: hip-hop
genre: east-coast-hip-hop
genre: hardcore-hip-hop
isrc code: QM9K31400093
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9K31400093
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5af55d26241233e7a02e0fc69f5ab48d88a71f542c57a773ba73d560241600. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM9K31400093.
  date published: 2026-07-02T03:30:09Z
audio: Blood On The Cobblestones
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.328
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.716
  additional property: Energy
    type: PropertyValue
    value: 0.72
  additional property: Speechiness
    type: PropertyValue
    value: 0.169
  additional property: Acousticness
    type: PropertyValue
    value: 0.018
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.195
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.473
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.465
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major