April Kerr
type: MusicGroup
genre: spoken word
popularity: 2
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca7edff558107803cf0b581246c76b920641ef4577808e83b5c33104b4b497c6
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/6563ba10-c658-4c61-8adf-a9441e46f927.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6563ba10-c658-4c61-8adf-a9441e46f927.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6563ba10-c658-4c61-8adf-a9441e46f927
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xca7edff558107803cf0b581246c76b920641ef4577808e83b5c33104b4b497c6","name":"April Kerr","registered_at":"2026-06-17T00:59:56Z","symbol":"NIM1231348","token_address":"0xa4138d2c36476b017a4082f1596615bc33b67cb5","type":"artist","uuid":"6563ba10-c658-4c61-8adf-a9441e46f927"}
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 0xca7edff558107803cf0b581246c76b920641ef4577808e83b5c33104b4b497c6. 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/6563ba10-c658-4c61-8adf-a9441e46f927.json and https://artists.proofprofile.net/proofs/artist/6563ba10-c658-4c61-8adf-a9441e46f927.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xca7edff558107803cf0b581246c76b920641ef4577808e83b5c33104b4b497c6","name":"April Kerr","registered_at":"2026-06-17T00:59:56Z","symbol":"NIM1231348","token_address":"0xa4138d2c36476b017a4082f1596615bc33b67cb5","type":"artist","uuid":"6563ba10-c658-4c61-8adf-a9441e46f927"}
album: Original
  type: MusicAlbum
  date published: 2018-11-01
album: Christmas With You
  type: MusicAlbum
  date published: 2019-11-19
album: Feel the Season
  type: MusicAlbum
  date published: 2020-12-01
album: Headspace
  type: MusicAlbum
  date published: 2021-08-05
album: April Kerr x Off the Record (Live Sessions)
  type: MusicAlbum
  date published: 2023-06-30
album: Nothing is Silent
  type: MusicAlbum
  date published: 2025-06-13