Milco Roskam
type: MusicGroup
popularity: 23
followers: 635
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f06c2ff77669a96dffbdd715a1962cb5a340d66a5fd1884c5d89605d4a8cb91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b8a33cb-d770-44cc-8c84-aa4797bf1313.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b8a33cb-d770-44cc-8c84-aa4797bf1313.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b8a33cb-d770-44cc-8c84-aa4797bf1313
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1f06c2ff77669a96dffbdd715a1962cb5a340d66a5fd1884c5d89605d4a8cb91","name":"Milco Roskam","registered_at":"2026-06-12T18:27:52Z","symbol":"NIM0336250","token_address":"0x8d63bfdf0da86131a44dadadd4b4fc4a79cf2bde","type":"artist","uuid":"5b8a33cb-d770-44cc-8c84-aa4797bf1313"}
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 0x1f06c2ff77669a96dffbdd715a1962cb5a340d66a5fd1884c5d89605d4a8cb91. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b8a33cb-d770-44cc-8c84-aa4797bf1313.json and https://artists.proofprofile.net/proofs/artist/5b8a33cb-d770-44cc-8c84-aa4797bf1313.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x1f06c2ff77669a96dffbdd715a1962cb5a340d66a5fd1884c5d89605d4a8cb91","name":"Milco Roskam","registered_at":"2026-06-12T18:27:52Z","symbol":"NIM0336250","token_address":"0x8d63bfdf0da86131a44dadadd4b4fc4a79cf2bde","type":"artist","uuid":"5b8a33cb-d770-44cc-8c84-aa4797bf1313"}
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  type: MusicAlbum
  date published: 2020-12-11
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  type: MusicAlbum
  date published: 2021-04-30
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  type: MusicAlbum
  date published: 2021-06-04
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  type: MusicAlbum
  date published: 2021-11-12
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  type: MusicAlbum
  date published: 2024-09-27