Regressive Left
type: MusicGroup
genre: post-punk
description: thumb|Maajid Nawaz's use of the phrase regressive left has been a part of his opposition to Islamism, the Qur'anic literalist pole of Islam that emphasises Sharia (Islamic law), pan-Islamic political
popularity: 4
followers: 2139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe4a5feecc2ed039a2a80c171d9dcbc2b8c4c0d3280f77be68b655c4cfce3d8c0
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/4a5da6c3-97d0-4ba4-a0b0-2c3cdfe017e3.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/4a5da6c3-97d0-4ba4-a0b0-2c3cdfe017e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a5da6c3-97d0-4ba4-a0b0-2c3cdfe017e3
additional property: OTSTimestamp
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  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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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 0xe4a5feecc2ed039a2a80c171d9dcbc2b8c4c0d3280f77be68b655c4cfce3d8c0. 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/4a5da6c3-97d0-4ba4-a0b0-2c3cdfe017e3.json and https://artists.proofprofile.net/proofs/artist/4a5da6c3-97d0-4ba4-a0b0-2c3cdfe017e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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