Derek Westra
type: MusicGroup
popularity: 4
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc326bdc951300272b0f8d988bb49894510f4bf1351cf6639d6f87be6b6d02fc4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954027
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954027
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38669cc4-051e-4025-91ad-d5d9e520822d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/38669cc4-051e-4025-91ad-d5d9e520822d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/38669cc4-051e-4025-91ad-d5d9e520822d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc326bdc951300272b0f8d988bb49894510f4bf1351cf6639d6f87be6b6d02fc4","name":"Derek Westra","registered_at":"2026-06-16T09:33:28Z","symbol":"NIM1010316","token_address":"0x122367fe54bb93b1e9e3196a57b4edeeb0501c9b","type":"artist","uuid":"38669cc4-051e-4025-91ad-d5d9e520822d"}
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 0xc326bdc951300272b0f8d988bb49894510f4bf1351cf6639d6f87be6b6d02fc4. 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/38669cc4-051e-4025-91ad-d5d9e520822d.json and https://artists.proofprofile.net/proofs/artist/38669cc4-051e-4025-91ad-d5d9e520822d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc326bdc951300272b0f8d988bb49894510f4bf1351cf6639d6f87be6b6d02fc4","name":"Derek Westra","registered_at":"2026-06-16T09:33:28Z","symbol":"NIM1010316","token_address":"0x122367fe54bb93b1e9e3196a57b4edeeb0501c9b","type":"artist","uuid":"38669cc4-051e-4025-91ad-d5d9e520822d"}
album: Pretty Piano Pop Songs
  type: MusicAlbum
  date published: 2019-11-24
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  type: MusicAlbum
  date published: 2020-09-12
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  type: MusicAlbum
  date published: 2020-11-21
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  type: MusicAlbum
  date published: 2021-12-01
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  type: MusicAlbum
  date published: 2024-09-20
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  type: MusicAlbum
  date published: 2025-10-22