April Cushman
type: MusicGroup
popularity: 2
followers: 1063
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1197d5e96aa17c93fc5a1e4df9d535c680ad6db251baa9230d56b528e2f4ed9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa1197d5e96aa17c93fc5a1e4df9d535c680ad6db251baa9230d56b528e2f4ed9","name":"April Cushman","registered_at":"2026-06-20T15:23:01Z","symbol":"NIM1641542","token_address":"0xe8e229c5b7b4008159082db20b179376e07fd6a2","type":"artist","uuid":"b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0"}
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 0xa1197d5e96aa17c93fc5a1e4df9d535c680ad6db251baa9230d56b528e2f4ed9. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0.json and https://artists.proofprofile.net/proofs/artist/b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xa1197d5e96aa17c93fc5a1e4df9d535c680ad6db251baa9230d56b528e2f4ed9","name":"April Cushman","registered_at":"2026-06-20T15:23:01Z","symbol":"NIM1641542","token_address":"0xe8e229c5b7b4008159082db20b179376e07fd6a2","type":"artist","uuid":"b73cc678-9a81-4ab3-a7e4-0e7885dcbfc0"}
album: Have Yourself a Merry Little Christmas
  type: MusicAlbum
  date published: 2019-12-05
album: In a Small Town
  type: MusicAlbum
  date published: 2020-06-19
album: Once Upon a Time
  type: MusicAlbum
  date published: 2020-10-23
album: The Long Haul
  type: MusicAlbum
  date published: 2021-07-25
album: The Long Haul
  type: MusicAlbum
  date published: 2021-11-26
album: Smoke (Acoustic)
  type: MusicAlbum
  date published: 2023-01-30
album: James (Acoustic)
  type: MusicAlbum
  date published: 2023-03-10
album: More Than His Truck
  type: MusicAlbum
  date published: 2023-06-23
album: Borrowed Time
  type: MusicAlbum
  date published: 2023-08-13
album: WILD
  type: MusicAlbum
  date published: 2025-08-07