Michael Morrow
type: MusicGroup
genre: medieval
description: Michael Morrow (2 October 1929 – 20 April 1994) was an Irish artist, ornithologist, musician and musicologist who, together with John Beckett, founded the British early music group Musica Reservata in
popularity: 9
followers: 64
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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 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
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  date published: 2026-06-21T07:29:20Z
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album: The Tudors: Metaphysical Tobacco
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  date published: 2015-09-25
  track: Pavan No. V (from Thomas Simpson, Taffel-Consort 1621)
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    by artist: John Dowland
    by artist: Musica Reservata
    by artist: Michael Morrow
    by artist: Purcell Consort Of Voices
    by artist: Grayston Burgess
    in album: The Tudors: Metaphysical Tobacco
      type: MusicAlbum
      date published: 2015-09-25
    popularity: 2
    genre: medieval
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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 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
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      date published: 2026-07-31T06:58:00Z
    audio: Pavan No. V (from Thomas Simpson, Taffel-Consort 1621)
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track: Blow Thy Horn, Hunter
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  by artist: Purcell Consort Of Voices
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  in album: Music to Entertain Henry VIII
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    date published: 1968-01-01
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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 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
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    date published: 2026-07-30T14:36:16Z
  audio: Blow Thy Horn, Hunter
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    additional property: Valence (Positivity)
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track: En frolyk weson

Acousticness
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Mode Name
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En frolyk weson
type: MusicRecording
duration: PT2M17S
duration ms: 137640
explicit: false
by artist: Jacobus Barbireau
by artist: Purcell Consort Of Voices
by artist: Grayston Burgess
by artist: Musica Reservata
by artist: Michael Morrow
in album: Music to Entertain Henry VIII
  type: MusicAlbum
  date published: 1968-01-01
genre: franco-flemish-school
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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 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
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  date published: 2026-07-30T19:42:40Z
audio: En frolyk weson
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