Friendly Fire
type: MusicGroup
description: thumb|upright=1.35|An American B-17 Flying Fortress "Miss Donna Mae II" is damaged by bombs after drifting under the American bomber flying above it during the bombing of Berlin in 1944. The damage to
popularity: 2
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc69cc0d108b2f1f2ec5dc8039409b3b1519262d41ec6f3ae7dd77a9d98dc83f7
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/5cf8f1bf-72ae-40bb-9c83-1acb600a2648.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5cf8f1bf-72ae-40bb-9c83-1acb600a2648.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5cf8f1bf-72ae-40bb-9c83-1acb600a2648
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc69cc0d108b2f1f2ec5dc8039409b3b1519262d41ec6f3ae7dd77a9d98dc83f7","name":"Friendly Fire","registered_at":"2026-06-16T22:00:08Z","symbol":"NIM1188471","token_address":"0x6ac35f9c4b1d83dead5af4ad90b0fae1a02096f5","type":"artist","uuid":"5cf8f1bf-72ae-40bb-9c83-1acb600a2648"}
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 0xc69cc0d108b2f1f2ec5dc8039409b3b1519262d41ec6f3ae7dd77a9d98dc83f7. 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/5cf8f1bf-72ae-40bb-9c83-1acb600a2648.json and https://artists.proofprofile.net/proofs/artist/5cf8f1bf-72ae-40bb-9c83-1acb600a2648.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc69cc0d108b2f1f2ec5dc8039409b3b1519262d41ec6f3ae7dd77a9d98dc83f7","name":"Friendly Fire","registered_at":"2026-06-16T22:00:08Z","symbol":"NIM1188471","token_address":"0x6ac35f9c4b1d83dead5af4ad90b0fae1a02096f5","type":"artist","uuid":"5cf8f1bf-72ae-40bb-9c83-1acb600a2648"}
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  type: MusicAlbum
  date published: 2024-12-13
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  type: MusicAlbum
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  type: MusicAlbum
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