Jacopo da Bologna
type: MusicGroup
genre: medieval
description: Jacopo da Bologna () was an Italian composer of the Trecento, the period sometimes known as the Italian ars nova. He was one of the first composers of this group, making him a contemporary of Gherarde
popularity: 12
followers: 1573
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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 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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album: Da Bologna: Italiennische Madrigale des 14 Jahrhunderts
  type: MusicAlbum
  date published: 1985
album: Jacopo da Bologna: Madrigali e cacce
  type: MusicAlbum
  date published: 2005
album: Jacopo da Bologna: Madrigali e cacce
  type: MusicAlbum
  date published: 2005-01-01
album: Jacopo da Bologna: Italian Madrigals of the 14th Century
  type: MusicAlbum
  date published: 2010-08-24
album: Jacopo da Bologna: Madrigali e Cacce
  type: MusicAlbum
  date published: 2014-07-01
album: Trecento Madrigali (Jacopo da Bologna for Guitar)
  type: MusicAlbum
  date published: 2024-08-16
track: Dulcimer - Madrigal (Tanto soavemente)
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  duration: PT1M57S
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  by artist: Jacopo da Bologna
  by artist: David Munrow
  by artist: Early Music Consort Of London
  in album: Instruments of Middle Age and Renaissance
    type: MusicAlbum
    date published: 1976
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    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: 2026-07-08T03:20:19Z
  audio: Dulcimer - Madrigal (Tanto soavemente)
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track: Lute - Madrigal (Di novo é giunto)
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  by artist: Jacopo da Bologna
  by artist: David Munrow
  by artist: Early Music Consort Of London
  in album: Instruments of Middle Age and Renaissance
    type: MusicAlbum
    date published: 1976
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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: 2026-07-31T15:20:15Z
  audio: Lute - Madrigal (Di novo é giunto)
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track: O cieco mondo
track: Aquil' altera, ferma / Creatura gentil / Uccel' di Dio
track: Codex Faenza: Aquila altera (arr. for chamber ensemble)

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Key Name
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O cieco mondo
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duration: PT1M35S
duration ms: 95309
explicit: false
by artist: Jacopo da Bologna
by artist: Soetkin Baptist
by artist: Floris de Rycker
in album: Ossesso
  type: MusicAlbum
  date published: 2019-01-25
isrc code: DEY321808002
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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: 2026-07-08T03:20:19Z
audio: O cieco mondo
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Aquil' altera, ferma / Creatura gentil / Uccel' di Dio
type: MusicRecording
duration: PT2M40S
duration ms: 160000
explicit: false
by artist: Jacopo da Bologna
by artist: Unicorn Ensemble
by artist: Michael Posch
in album: Codex Faenza: Instrumental Music of the Early 15th Century
  type: MusicAlbum
  date published: 1998-05-19
isrc code: HKI199700809
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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: 2026-07-31T12:24:41Z
audio: Aquil' altera, ferma / Creatura gentil / Uccel' di Dio
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Codex Faenza: Aquila altera (arr. for chamber ensemble)
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by artist: Jacopo da Bologna
by artist: Unicorn Ensemble
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in album: Codex Faenza: Instrumental Music of the Early 15th Century
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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: 2026-07-02T03:55:08Z
audio: Codex Faenza: Aquila altera (arr. for chamber ensemble)
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