Heidi Alexander
type: MusicGroup
description: Heidi Alexander (born 17 April 1975) is a British politician who has served as Secretary of State for Transport since November 2024. A member of the Labour Party, she has been the Member of Parliament
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe706c5dbe13d5a9905873bc092b2a3df74c02b170efacc35dc863873e39444c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68b7feb7-bbaf-4483-a407-62a2e371a992.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68b7feb7-bbaf-4483-a407-62a2e371a992.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/68b7feb7-bbaf-4483-a407-62a2e371a992
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe706c5dbe13d5a9905873bc092b2a3df74c02b170efacc35dc863873e39444c","name":"Heidi Alexander","registered_at":"2026-06-17T02:09:25Z","symbol":"NIM1247935","token_address":"0x324a8f76eea6b0c2ff84dd4850d3e09ec41a5fbb","type":"artist","uuid":"68b7feb7-bbaf-4483-a407-62a2e371a992"}
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 0xfe706c5dbe13d5a9905873bc092b2a3df74c02b170efacc35dc863873e39444c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68b7feb7-bbaf-4483-a407-62a2e371a992.json and https://artists.proofprofile.net/proofs/artist/68b7feb7-bbaf-4483-a407-62a2e371a992.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xfe706c5dbe13d5a9905873bc092b2a3df74c02b170efacc35dc863873e39444c","name":"Heidi Alexander","registered_at":"2026-06-17T02:09:25Z","symbol":"NIM1247935","token_address":"0x324a8f76eea6b0c2ff84dd4850d3e09ec41a5fbb","type":"artist","uuid":"68b7feb7-bbaf-4483-a407-62a2e371a992"}