Ursula März
type: MusicGroup
description: Ursula März (born 1957) is a German author and literary critic-commentator. Life Ursula März was born at Herzogenaurach, a mid-sized town on the edge of Erlangen in Franconia (Bavaria). She compl
popularity: 2
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf28baaf70df49cc53677eff0ecca941f32d029459affcd6a5adbdfccaf62b7e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/175cd878-d9fb-4fd1-a006-e3060a8164ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/175cd878-d9fb-4fd1-a006-e3060a8164ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/175cd878-d9fb-4fd1-a006-e3060a8164ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf28baaf70df49cc53677eff0ecca941f32d029459affcd6a5adbdfccaf62b7e6","name":"Ursula März","registered_at":"2026-06-15T21:42:03Z","symbol":"NIM0840455","token_address":"0x575823e2593d7055a0ede3bce93f1bbac0a51bef","type":"artist","uuid":"175cd878-d9fb-4fd1-a006-e3060a8164ef"}
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 0xf28baaf70df49cc53677eff0ecca941f32d029459affcd6a5adbdfccaf62b7e6. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/175cd878-d9fb-4fd1-a006-e3060a8164ef.json and https://artists.proofprofile.net/proofs/artist/175cd878-d9fb-4fd1-a006-e3060a8164ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xf28baaf70df49cc53677eff0ecca941f32d029459affcd6a5adbdfccaf62b7e6","name":"Ursula März","registered_at":"2026-06-15T21:42:03Z","symbol":"NIM0840455","token_address":"0x575823e2593d7055a0ede3bce93f1bbac0a51bef","type":"artist","uuid":"175cd878-d9fb-4fd1-a006-e3060a8164ef"}
album: Tante Martl
  type: MusicAlbum
  date published: 2020-08-11