Selina Chönz
type: MusicGroup
description: Selina Chönz or Selina Choenz (4 August 1910 – 17 February 2000) was a Swiss children's author. Her most famous work is A Bell for Ursli, a children's book illustrated by Alois Carigiet. thumb|Swiss c
popularity: 18
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07fdde6c2d73e2fdc187b81328a0259c862c0750f2ca1a29722ccb90368f8730
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98f0d06c-266f-4679-9a76-46105fa60c15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98f0d06c-266f-4679-9a76-46105fa60c15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98f0d06c-266f-4679-9a76-46105fa60c15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07fdde6c2d73e2fdc187b81328a0259c862c0750f2ca1a29722ccb90368f8730","name":"Selina Chönz","registered_at":"2026-06-14T20:34:37Z","symbol":"NIM0568960","token_address":"0x70747020ce580b6cd3a9a675f164f1ca78febd6f","type":"artist","uuid":"98f0d06c-266f-4679-9a76-46105fa60c15"}
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 0x07fdde6c2d73e2fdc187b81328a0259c862c0750f2ca1a29722ccb90368f8730. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98f0d06c-266f-4679-9a76-46105fa60c15.json and https://artists.proofprofile.net/proofs/artist/98f0d06c-266f-4679-9a76-46105fa60c15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x07fdde6c2d73e2fdc187b81328a0259c862c0750f2ca1a29722ccb90368f8730","name":"Selina Chönz","registered_at":"2026-06-14T20:34:37Z","symbol":"NIM0568960","token_address":"0x70747020ce580b6cd3a9a675f164f1ca78febd6f","type":"artist","uuid":"98f0d06c-266f-4679-9a76-46105fa60c15"}