T4
type: MusicGroup
genre: funk rock
popularity: 9
followers: 492
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1719be3622ffda93cf7ae4885e585ce4ca6bec5ab3e23ddcffb95401cd98935e
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/73774121-5fe9-4c6d-9ba3-030192db6946.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73774121-5fe9-4c6d-9ba3-030192db6946.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73774121-5fe9-4c6d-9ba3-030192db6946
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1719be3622ffda93cf7ae4885e585ce4ca6bec5ab3e23ddcffb95401cd98935e. 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/73774121-5fe9-4c6d-9ba3-030192db6946.json and https://artists.proofprofile.net/proofs/artist/73774121-5fe9-4c6d-9ba3-030192db6946.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Pár Tónů A Slov
  type: MusicAlbum
  date published: 2005-03-30
album: Pár Tónů A Slov
  type: MusicAlbum
  date published: 2008-01-01
album: Letter to St. Petersburg
  type: MusicAlbum
  date published: 2017-10-01
album: Letter to Father
  type: MusicAlbum
  date published: 2018-06-16
album: No Lie
  type: MusicAlbum
  date published: 2018-08-16
album: Defeating Inertia
  type: MusicAlbum
  date published: 2018-12-17
album: Feel Different
  type: MusicAlbum
  date published: 2021-05-16
album: Insight
  type: MusicAlbum
  date published: 2021-06-03
album: Betrayal
  type: MusicAlbum
  date published: 2021-07-10
album: Fallen Angel
  type: MusicAlbum
  date published: 2021-09-28
album: Amy
  type: MusicAlbum
  date published: 2023-01-03
album: Voice Of The Streets Deluxe**
  type: MusicAlbum
  date published: 2023-04-07
track: Roll up (feat. Skeppy & T4)

Roll up (feat. Skeppy & T4)
type: MusicRecording
duration: PT3M28S
duration ms: 208516
explicit: false
by artist: Yatez
by artist: Skeppy
by artist: T4
in album: Local
  type: MusicAlbum
  date published: 2017-11-17
isrc code: TCADI1785010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:53:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2a1f437e943b3a99e3a7c5d8971870f9156ffdde5ecb50aef55dad88433607f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADI1785010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0xe2a1f437e943b3a99e3a7c5d8971870f9156ffdde5ecb50aef55dad88433607f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCADI1785010.
  date published: 2026-07-08T03:22:41Z
audio: Roll up (feat. Skeppy & T4)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.816
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.694
  additional property: Energy
    type: PropertyValue
    value: 0.599
  additional property: Speechiness
    type: PropertyValue
    value: 0.214
  additional property: Acousticness
    type: PropertyValue
    value: 0.243
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.01
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor