Sarah Kretschmer
type: MusicGroup
genre: worship
popularity: 18
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f324fe7eed52ef9564fa25060f46af0c94e694f2afe55e9e85fcbe5e4843184
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29804785-f58c-4ffd-8e75-335e74e48aef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29804785-f58c-4ffd-8e75-335e74e48aef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29804785-f58c-4ffd-8e75-335e74e48aef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f324fe7eed52ef9564fa25060f46af0c94e694f2afe55e9e85fcbe5e4843184","name":"Sarah Kretschmer","registered_at":"2026-06-14T08:51:31Z","symbol":"NIM0401269","token_address":"0x02776f17acad34d71e2d903fc44e265dd97f5539","type":"artist","uuid":"29804785-f58c-4ffd-8e75-335e74e48aef"}
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 0x9f324fe7eed52ef9564fa25060f46af0c94e694f2afe55e9e85fcbe5e4843184. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29804785-f58c-4ffd-8e75-335e74e48aef.json and https://artists.proofprofile.net/proofs/artist/29804785-f58c-4ffd-8e75-335e74e48aef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x9f324fe7eed52ef9564fa25060f46af0c94e694f2afe55e9e85fcbe5e4843184","name":"Sarah Kretschmer","registered_at":"2026-06-14T08:51:31Z","symbol":"NIM0401269","token_address":"0x02776f17acad34d71e2d903fc44e265dd97f5539","type":"artist","uuid":"29804785-f58c-4ffd-8e75-335e74e48aef"}