Matt-U
type: MusicGroup
genre: drum and bass
genre: dubstep
genre: jungle
genre: melbourne bounce
popularity: 5
followers: 519
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf10e4d2d4e38c3e8ae2898bd498e5f85704b5e4e953e4419d69b48b38aac28fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dff59945-a429-4bd5-9e07-e081f4249592.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dff59945-a429-4bd5-9e07-e081f4249592.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dff59945-a429-4bd5-9e07-e081f4249592
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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 0xf10e4d2d4e38c3e8ae2898bd498e5f85704b5e4e953e4419d69b48b38aac28fc. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dff59945-a429-4bd5-9e07-e081f4249592.json and https://artists.proofprofile.net/proofs/artist/dff59945-a429-4bd5-9e07-e081f4249592.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Iron Skies
  type: MusicAlbum
  date published: 2007-09-20
album: Mute Soul / Parrilla
  type: MusicAlbum
  date published: 2008-05-05
album: Peyote / Free Me
  type: MusicAlbum
  date published: 2009-07-20
album: Jump
  type: MusicAlbum
  date published: 2009-10-05
album: Jump
  type: MusicAlbum
  date published: 2009-10-05
album: Can't Wake Up
  type: MusicAlbum
  date published: 2009-11-23
album: Can’t Wake Up – Single
  type: MusicAlbum
  date published: 2009-11-23
album: Dope EP
  type: MusicAlbum
  date published: 2010-03-22
album: Our Moment / Victim
  type: MusicAlbum
  date published: 2010-07-02
album: Guillotine Growl / Double Blind
  type: MusicAlbum
  date published: 2010-09-27
album: Guillotine Growl / Double Blind – Single
  type: MusicAlbum
  date published: 2010-09-27
album: Watchin U EP
  type: MusicAlbum
  date published: 2011-03-21
album: Empty Inside / Unforgiven
  type: MusicAlbum
  date published: 2011-11-07
album: Empty Inside / Unforgiven
  type: MusicAlbum
  date published: 2011-11-07
album: Straightened Up
  type: MusicAlbum
  date published: 2012-02-06
album: Wipe Em Out / Uncontrolled
  type: MusicAlbum
  date published: 2012-05-28
album: Wipe Em Out / Uncontrolled
  type: MusicAlbum
  date published: 2012-05-28
album: Frequency EP
  type: MusicAlbum
  date published: 2013-05-27
album: HammerHead EP
  type: MusicAlbum
  date published: 2013-08-26
album: Bad Seed Audio 001
  type: MusicAlbum
  date published: 2015-02-02
album: head in a hoodie
  type: MusicAlbum
  date published: 2019-06-14
track: Got Lost
  type: MusicRecording
  duration: PT6M18S
  duration ms: 378540
  explicit: false
  by artist: Jade Venom
  by artist: Matt-U
  in album: Cruel & Unusual
    type: MusicAlbum
    date published: 2005-12-12
  popularity: 5
  isrc code: NLCF10700016
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T11:07:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb67b88a8e96020f311544f877ba90a0e355ac17f00d32afe58a3697ee306f401
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960099
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960099
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCF10700016
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T11:30:20Z
  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 0xb67b88a8e96020f311544f877ba90a0e355ac17f00d32afe58a3697ee306f401. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLCF10700016.
    date published: 2026-07-29T11:30:20Z
  audio: Got Lost
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.001
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.575
    additional property: Energy
      type: PropertyValue
      value: 0.943
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.764
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.466
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.304
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Blood Pressure - Matt-U Remix
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277720
  explicit: false
  by artist: Brains
  by artist: Matt-U
  in album: Refresh the Style
    type: MusicAlbum
    date published: 2011
  isrc code: HUAMV1900101
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  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: Blood Pressure - Matt-U Remix

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T14:12:35+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xd31472cc18dc24c64c41d132142db01bbf95a6d29365921acea6b8d808be699c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUAMV1900101

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31472cc18dc24c64c41d132142db01bbf95a6d29365921acea6b8d808be699c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUAMV1900101.
date published: 2026-07-08T03:20:19Z

Blood Pressure - Matt-U Remix
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.172
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.569
additional property: Energy
  type: PropertyValue
  value: 0.735
additional property: Speechiness
  type: PropertyValue
  value: 0.384
additional property: Acousticness
  type: PropertyValue
  value: 0.144
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.087
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.41
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.31
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major