Black Hour
type: MusicGroup
genre: hindi indie
genre: indian indie
genre: melodic metal
description: Black Hour, often stylized as Blackhour, () is a Pakistani progressive rock band from Islamabad, founded in 2007 by guitarist Hashim Mehmood. After several lineup changes in its early years, the band
popularity: 6
followers: 12108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x642eda99a7172e865448cdce5159e46be530675123bccd59f0bc7d3a10d44805
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b95f495-4839-45d6-a4eb-efc23ff316d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b95f495-4839-45d6-a4eb-efc23ff316d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b95f495-4839-45d6-a4eb-efc23ff316d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:36:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x642eda99a7172e865448cdce5159e46be530675123bccd59f0bc7d3a10d44805","name":"Black Hour","registered_at":"2026-06-15T23:09:22Z","symbol":"NIM0861280","token_address":"0xc0e0559639d9a42464a418027b0d3155671d6aa4","type":"artist","uuid":"1b95f495-4839-45d6-a4eb-efc23ff316d0"}
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 0x642eda99a7172e865448cdce5159e46be530675123bccd59f0bc7d3a10d44805. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b95f495-4839-45d6-a4eb-efc23ff316d0.json and https://artists.proofprofile.net/proofs/artist/1b95f495-4839-45d6-a4eb-efc23ff316d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x642eda99a7172e865448cdce5159e46be530675123bccd59f0bc7d3a10d44805","name":"Black Hour","registered_at":"2026-06-15T23:09:22Z","symbol":"NIM0861280","token_address":"0xc0e0559639d9a42464a418027b0d3155671d6aa4","type":"artist","uuid":"1b95f495-4839-45d6-a4eb-efc23ff316d0"}
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