Elżbieta Dmoch
type: MusicGroup
description: Elżbieta Dmoch (born September 29, 1951) is a Polish singer and flautist, former member of the popular band 2 Plus 1. Career Dmoch started to attend singing lessons in her earliest years. She went
popularity: 8
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7a5020de9187652db1084a39702b38b89b981b06116132cc5468996ff0482a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5512f977-87a1-4a55-ae67-d54753d0098d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5512f977-87a1-4a55-ae67-d54753d0098d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5512f977-87a1-4a55-ae67-d54753d0098d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb7a5020de9187652db1084a39702b38b89b981b06116132cc5468996ff0482a5","name":"Elżbieta Dmoch","registered_at":"2026-06-16T19:18:32Z","symbol":"NIM1149904","token_address":"0xbabc57a501be28d0c87a7042ccd69aad0ca8de45","type":"artist","uuid":"5512f977-87a1-4a55-ae67-d54753d0098d"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a5020de9187652db1084a39702b38b89b981b06116132cc5468996ff0482a5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5512f977-87a1-4a55-ae67-d54753d0098d.json and https://artists.proofprofile.net/proofs/artist/5512f977-87a1-4a55-ae67-d54753d0098d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xb7a5020de9187652db1084a39702b38b89b981b06116132cc5468996ff0482a5","name":"Elżbieta Dmoch","registered_at":"2026-06-16T19:18:32Z","symbol":"NIM1149904","token_address":"0xbabc57a501be28d0c87a7042ccd69aad0ca8de45","type":"artist","uuid":"5512f977-87a1-4a55-ae67-d54753d0098d"}