One Last Hope
type: MusicGroup
popularity: 4
followers: 208
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4d6666bd616ee5d1a61e27cad63ab8d49856b181ad083a5a7ec04da18fa8d71
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/df349fcb-74ef-4b69-bbe6-0be961a4872c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df349fcb-74ef-4b69-bbe6-0be961a4872c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df349fcb-74ef-4b69-bbe6-0be961a4872c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa4d6666bd616ee5d1a61e27cad63ab8d49856b181ad083a5a7ec04da18fa8d71","name":"One Last Hope","registered_at":"2026-06-21T06:23:02Z","symbol":"NIM1847029","token_address":"0x6b03884c41532469a0898e64115a03b51bb6382e","type":"artist","uuid":"df349fcb-74ef-4b69-bbe6-0be961a4872c"}
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 0xa4d6666bd616ee5d1a61e27cad63ab8d49856b181ad083a5a7ec04da18fa8d71. 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/df349fcb-74ef-4b69-bbe6-0be961a4872c.json and https://artists.proofprofile.net/proofs/artist/df349fcb-74ef-4b69-bbe6-0be961a4872c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa4d6666bd616ee5d1a61e27cad63ab8d49856b181ad083a5a7ec04da18fa8d71","name":"One Last Hope","registered_at":"2026-06-21T06:23:02Z","symbol":"NIM1847029","token_address":"0x6b03884c41532469a0898e64115a03b51bb6382e","type":"artist","uuid":"df349fcb-74ef-4b69-bbe6-0be961a4872c"}
album: One Last Hope
  type: MusicAlbum
  date published: 2019-10-25
album: Covarde
  type: MusicAlbum
  date published: 2024-04-12
album: Transcender
  type: MusicAlbum
  date published: 2024-04-25
album: Seguindo em Frente
  type: MusicAlbum
  date published: 2024-05-02
  track: Transcender
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248438
    explicit: false
    by artist: One Last Hope
    in album: Seguindo em Frente
      type: MusicAlbum
      date published: 2024-05-02
    isrc code: BXQZX2400003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T22:08:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6095bfb377a92d8044cd073c998201389df9ae52f97e9bc622d8a2887486ae2c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958462
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958462
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXQZX2400003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:17:53Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6095bfb377a92d8044cd073c998201389df9ae52f97e9bc622d8a2887486ae2c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BXQZX2400003.
      date published: 2026-07-17T23:17:53Z
    audio: Transcender
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 165.905
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.43
      additional property: Energy
        type: PropertyValue
        value: 0.942
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.025
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.387
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.341
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor