Hollow Pledge
type: MusicGroup
genre: post-hardcore
popularity: 3
followers: 468
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29c19b06b068906d2da89f34f365b4ad85c1578c2629c7b532142561286afb2b
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/789fb82a-555e-4012-b824-ba8141947a88.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/789fb82a-555e-4012-b824-ba8141947a88.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/789fb82a-555e-4012-b824-ba8141947a88
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x29c19b06b068906d2da89f34f365b4ad85c1578c2629c7b532142561286afb2b","name":"Hollow Pledge","registered_at":"2026-06-17T07:38:39Z","symbol":"NIM1326478","token_address":"0x3545293388263407d38f41c7f2ddbfbd048152d7","type":"artist","uuid":"789fb82a-555e-4012-b824-ba8141947a88"}
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 0x29c19b06b068906d2da89f34f365b4ad85c1578c2629c7b532142561286afb2b. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/789fb82a-555e-4012-b824-ba8141947a88.json and https://artists.proofprofile.net/proofs/artist/789fb82a-555e-4012-b824-ba8141947a88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x29c19b06b068906d2da89f34f365b4ad85c1578c2629c7b532142561286afb2b","name":"Hollow Pledge","registered_at":"2026-06-17T07:38:39Z","symbol":"NIM1326478","token_address":"0x3545293388263407d38f41c7f2ddbfbd048152d7","type":"artist","uuid":"789fb82a-555e-4012-b824-ba8141947a88"}
album: Intervention
  type: MusicAlbum
  date published: 2019-03-20
album: Intervention
  type: MusicAlbum
  date published: 2019-03-20
album: Breakthrough
  type: MusicAlbum
  date published: 2020-06-19
album: Breakthrough
  type: MusicAlbum
  date published: 2020-06-19
album: House Lights
  type: MusicAlbum
  date published: 2021-11-28
album: House Lights
  type: MusicAlbum
  date published: 2021-11-28
album: Up and Up
  type: MusicAlbum
  date published: 2021-12-17
album: Up and Up
  type: MusicAlbum
  date published: 2021-12-24
  track: Up and Up
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259506
    explicit: false
    by artist: Hollow Pledge
    in album: Up and Up
      type: MusicAlbum
      date published: 2021-12-24
    genre: post-hardcore
    isrc code: QZRP52107550
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:03:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76dfd0041921d63559b1f809f310f40b7bddf6948dc6c70661e03bce8d091bdb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52107550
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0x76dfd0041921d63559b1f809f310f40b7bddf6948dc6c70661e03bce8d091bdb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZRP52107550.
      date published: 2026-07-19T07:14:39Z
    audio: Up and Up
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.025
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.876
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.367
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.515
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.576
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Silent Cheers
  type: MusicAlbum
  date published: 2022-01-05
album: Silent Cheers
  type: MusicAlbum
  date published: 2022-01-05