Quantum Echo
type: MusicGroup
genre: ambient
popularity: 27
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94434d18ab109505cee668d8c0b9749cd8f306b68edbd8ee995de5373dfb978d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5de0750-50fc-4785-8be5-78cf259af889.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5de0750-50fc-4785-8be5-78cf259af889.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5de0750-50fc-4785-8be5-78cf259af889
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x94434d18ab109505cee668d8c0b9749cd8f306b68edbd8ee995de5373dfb978d","name":"Quantum Echo","registered_at":"2026-06-12T06:27:55Z","symbol":"NIM0214277","token_address":"0x3661a7b3d6940c563fa967a04182ad4df8921d97","type":"artist","uuid":"a5de0750-50fc-4785-8be5-78cf259af889"}
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 0x94434d18ab109505cee668d8c0b9749cd8f306b68edbd8ee995de5373dfb978d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5de0750-50fc-4785-8be5-78cf259af889.json and https://artists.proofprofile.net/proofs/artist/a5de0750-50fc-4785-8be5-78cf259af889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x94434d18ab109505cee668d8c0b9749cd8f306b68edbd8ee995de5373dfb978d","name":"Quantum Echo","registered_at":"2026-06-12T06:27:55Z","symbol":"NIM0214277","token_address":"0x3661a7b3d6940c563fa967a04182ad4df8921d97","type":"artist","uuid":"a5de0750-50fc-4785-8be5-78cf259af889"}
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