The Band of H.M. Royal Marines Commandos
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-16T22:46:20Z
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track: The Captain General

The Captain General
type: MusicRecording
duration: PT2M33S
duration ms: 153861
explicit: false
by artist: The Band of H.M. Royal Marines Commandos
in album: The Great Marches, Vol. 6
  type: MusicAlbum
  date published: 2017-06-09
isrc code: GB8XC1418735
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e6174a6e85550232c22fc58c3dbbd36f194b6dcefee3210e26d22b85df4940. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8XC1418735.
  date published: 2026-07-08T03:22:41Z
audio: The Captain General
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