JC Kroupa
type: MusicGroup
genre: christian hip hop
popularity: 2
followers: 464
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x055568c8aa18517d9f4e12c169c9bfe64192491d8326614929b057b60d392f5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953923
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953923
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:51:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x055568c8aa18517d9f4e12c169c9bfe64192491d8326614929b057b60d392f5c","name":"JC Kroupa","registered_at":"2026-06-15T23:25:56Z","symbol":"NIM0865239","token_address":"0x0e3e310a742dc23454029567faee380475ec14df","type":"artist","uuid":"1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e"}
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 0x055568c8aa18517d9f4e12c169c9bfe64192491d8326614929b057b60d392f5c. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e.json and https://artists.proofprofile.net/proofs/artist/1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:51:37Z
  text: {"copyright_id":"0x055568c8aa18517d9f4e12c169c9bfe64192491d8326614929b057b60d392f5c","name":"JC Kroupa","registered_at":"2026-06-15T23:25:56Z","symbol":"NIM0865239","token_address":"0x0e3e310a742dc23454029567faee380475ec14df","type":"artist","uuid":"1ca8b926-9bbf-4bc8-a71b-2fc3216eef6e"}
album: Milwaukee Mixtape (Abridged Version)
  type: MusicAlbum
  date published: 2018-05-01
album: On God
  type: MusicAlbum
  date published: 2018-12-07
album: Cheers
  type: MusicAlbum
  date published: 2019-06-14
album: Titan
  type: MusicAlbum
  date published: 2019-09-13
album: All Night
  type: MusicAlbum
  date published: 2019-10-11
album: King Kroupa
  type: MusicAlbum
  date published: 2019-11-29
album: Steal the Moon
  type: MusicAlbum
  date published: 2020-02-14
album: MIRROR
  type: MusicAlbum
  date published: 2020-07-24
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  type: MusicAlbum
  date published: 2020-09-18
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  type: MusicAlbum
  date published: 2020-10-23
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  type: MusicAlbum
  date published: 2020-11-06
album: HALF A CLOUD (DELUXE)
  type: MusicAlbum
  date published: 2021-01-08
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  type: MusicAlbum
  date published: 2021-10-27
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  type: MusicAlbum
  date published: 2021-10-29
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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