Urs Kuhn
type: MusicGroup
popularity: 5
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72e41ea8ec1d32708c545fba71ae75bc17cf141acdfa58475c8ca84962fd3739
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c46e797b-469e-40ad-b6bb-0497a82e3bf0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c46e797b-469e-40ad-b6bb-0497a82e3bf0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c46e797b-469e-40ad-b6bb-0497a82e3bf0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72e41ea8ec1d32708c545fba71ae75bc17cf141acdfa58475c8ca84962fd3739","name":"Urs Kuhn","registered_at":"2026-06-20T20:50:30Z","symbol":"NIM1708392","token_address":"0x60a69742985a31c7f9a6a89f739ab3fa649a01cd","type":"artist","uuid":"c46e797b-469e-40ad-b6bb-0497a82e3bf0"}
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 0x72e41ea8ec1d32708c545fba71ae75bc17cf141acdfa58475c8ca84962fd3739. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c46e797b-469e-40ad-b6bb-0497a82e3bf0.json and https://artists.proofprofile.net/proofs/artist/c46e797b-469e-40ad-b6bb-0497a82e3bf0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x72e41ea8ec1d32708c545fba71ae75bc17cf141acdfa58475c8ca84962fd3739","name":"Urs Kuhn","registered_at":"2026-06-20T20:50:30Z","symbol":"NIM1708392","token_address":"0x60a69742985a31c7f9a6a89f739ab3fa649a01cd","type":"artist","uuid":"c46e797b-469e-40ad-b6bb-0497a82e3bf0"}