Gunnel Broström
type: MusicGroup
description: Gunnel Broström (1922–2012) was a Swedish stage, film and television actress.Steene p.230Wright p.120 She also directed a number of television films from 1965 onwards. She was married to the journalis
popularity: 2
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee0b4230c3b54b76d951f1786e2692d23f9b75e48bf5d07807e0e2da3aa18a81
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e0439bc-231a-490f-a23c-e49f9e40e75c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e0439bc-231a-490f-a23c-e49f9e40e75c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9e0439bc-231a-490f-a23c-e49f9e40e75c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee0b4230c3b54b76d951f1786e2692d23f9b75e48bf5d07807e0e2da3aa18a81","name":"Gunnel Broström","registered_at":"2026-06-20T04:59:56Z","symbol":"NIM1518613","token_address":"0x7a75bb80acd245ca74ffb267945738443d5cd52f","type":"artist","uuid":"9e0439bc-231a-490f-a23c-e49f9e40e75c"}
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 0xee0b4230c3b54b76d951f1786e2692d23f9b75e48bf5d07807e0e2da3aa18a81. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e0439bc-231a-490f-a23c-e49f9e40e75c.json and https://artists.proofprofile.net/proofs/artist/9e0439bc-231a-490f-a23c-e49f9e40e75c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xee0b4230c3b54b76d951f1786e2692d23f9b75e48bf5d07807e0e2da3aa18a81","name":"Gunnel Broström","registered_at":"2026-06-20T04:59:56Z","symbol":"NIM1518613","token_address":"0x7a75bb80acd245ca74ffb267945738443d5cd52f","type":"artist","uuid":"9e0439bc-231a-490f-a23c-e49f9e40e75c"}