delt4.og
type: MusicGroup
popularity: 2
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa90a2134330d6c3a0b75db95295c0619046fe9affe89746d62d0bb08c4b4586c
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/b7fc72dc-0ef6-4292-bad2-15d0c0376298.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7fc72dc-0ef6-4292-bad2-15d0c0376298.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7fc72dc-0ef6-4292-bad2-15d0c0376298
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 0xa90a2134330d6c3a0b75db95295c0619046fe9affe89746d62d0bb08c4b4586c. 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/b7fc72dc-0ef6-4292-bad2-15d0c0376298.json and https://artists.proofprofile.net/proofs/artist/b7fc72dc-0ef6-4292-bad2-15d0c0376298.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Tão Alto
  type: MusicAlbum
  date published: 2023-11-27
album: Castlela
  type: MusicAlbum
  date published: 2024-02-20
album: Passaport
  type: MusicAlbum
  date published: 2024-07-07
album: Merlin
  type: MusicAlbum
  date published: 2024-07-07
album: D. Q. E. S. B
  type: MusicAlbum
  date published: 2024-09-10
album: Liga Rara
  type: MusicAlbum
  date published: 2024-10-27
  track: Liga Rara
    type: MusicRecording
    duration: PT1M50S
    duration ms: 110285
    explicit: true
    by artist: delt4.og
    in album: Liga Rara
      type: MusicAlbum
      date published: 2024-10-27
    isrc code: QZW9K2432663
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T11:37:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8c044ced7eeac435b7b66eebb1b0db1c2ae74aed6f79e49d87daeab8d226c06
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959002
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959002
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2432663
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:47:29Z
    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 0xb8c044ced7eeac435b7b66eebb1b0db1c2ae74aed6f79e49d87daeab8d226c06. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZW9K2432663.
      date published: 2026-07-21T11:47:29Z
    audio: Liga Rara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.982
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.786
      additional property: Energy
        type: PropertyValue
        value: 0.445
      additional property: Speechiness
        type: PropertyValue
        value: 0.097
      additional property: Acousticness
        type: PropertyValue
        value: 0.473
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.37
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.93
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Zendaya
  type: MusicAlbum
  date published: 2025-02-04
album: Discordia
  type: MusicAlbum
  date published: 2025-06-27
album: Nirvana
  type: MusicAlbum
  date published: 2025-07-07
album: Fds o Diabo
  type: MusicAlbum
  date published: 2025-11-04