Jack Weaver
type: MusicGroup
description: John Harold Weaver (November 1, 1928 – April 7, 2009) was a Los Angeles County Deputy Sheriff and the developer of the Weaver stance, a popular shooting stance for firing handguns. Biography Weaver
popularity: 14
followers: 1041
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-14T08:22:11Z
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album: Pachamama (Mushina Remix)
  type: MusicAlbum
  date published: 2024-03-01
  track: Pachamama - Mushina Remix

Pachamama - Mushina Remix
type: MusicRecording
duration: PT8M5S
duration ms: 485538
explicit: false
by artist: Jack Weaver
by artist: Mushina
by artist: Sam Garrett
in album: Pachamama (Mushina Remix)
  type: MusicAlbum
  date published: 2024-03-01
popularity: 20
isrc code: DEUE22451315
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Pachamama - Mushina Remix
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  additional property: Key Name
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