Crossed Keys
type: MusicGroup
genre: melodic hardcore
genre: skate punk
popularity: 3
followers: 919
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22cac40dd459c72c3a23d2d2220843d84eab940013a3e3e686764b81174c2021
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/4e57dad6-1576-4ea8-be1e-435c40729ad5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e57dad6-1576-4ea8-be1e-435c40729ad5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e57dad6-1576-4ea8-be1e-435c40729ad5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22cac40dd459c72c3a23d2d2220843d84eab940013a3e3e686764b81174c2021","name":"Crossed Keys","registered_at":"2026-06-16T16:51:53Z","symbol":"NIM1114910","token_address":"0x517a20ab964e6d9a9ea5cfcab3151fb92809cf91","type":"artist","uuid":"4e57dad6-1576-4ea8-be1e-435c40729ad5"}
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 0x22cac40dd459c72c3a23d2d2220843d84eab940013a3e3e686764b81174c2021. 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/4e57dad6-1576-4ea8-be1e-435c40729ad5.json and https://artists.proofprofile.net/proofs/artist/4e57dad6-1576-4ea8-be1e-435c40729ad5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x22cac40dd459c72c3a23d2d2220843d84eab940013a3e3e686764b81174c2021","name":"Crossed Keys","registered_at":"2026-06-16T16:51:53Z","symbol":"NIM1114910","token_address":"0x517a20ab964e6d9a9ea5cfcab3151fb92809cf91","type":"artist","uuid":"4e57dad6-1576-4ea8-be1e-435c40729ad5"}
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