Kiera Duffy
type: MusicGroup
description: thumb|Duffy appearing in the Opera Philadelphia production of Breaking the Waves in 2016 Kiera Duffy (born 1979) is an American opera singer born in Philadelphia. A soprano, Duffy is also an accompli
popularity: 2
followers: 28
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additional property: CopyrightChainExplorerURL
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f15e90408a2d13c579369087f92f1b94cc40c3fb6586b21c71f070f67f30aba. 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/5375410a-272f-4830-a2fb-74e1e3ab07fa.json and https://artists.proofprofile.net/proofs/artist/5375410a-272f-4830-a2fb-74e1e3ab07fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Carl Orff: Carmina Burana
  type: MusicAlbum
  date published: 2012-09-10
  track: Carmina burana: Fortune plango vulnera
  track: Carmina burana: O Fortuna
album: R. Strauss: Complete Songs, Vol. 5
  type: MusicAlbum
  date published: 2011-09-26
album: Mohammed Fairouz: No Orpheus
  type: MusicAlbum
  date published: 2016-08-05
album: Handel: Dixit Dominus - Zadok the Priest - Ode for the Birthday of Queen Anne
  type: MusicAlbum
  date published: 2012-11-05
album: Michael Hersch: I hope we get a chance to visit soon
  type: MusicAlbum
  date published: 2020-05-22

Carmina burana: Fortune plango vulnera
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duration: PT2M50S
duration ms: 170653
explicit: false
by artist: Carl Orff
by artist: Kristjan Järvi
by artist: MDR Rundfunkchor
by artist: Kiera Duffy
by artist: Mark Panuccio
by artist: Daniel Schmutzhard
by artist: MDR Kinderchor
in album: Carl Orff: Carmina Burana
  type: MusicAlbum
  date published: 2012-09-10
isrc code: USSM11203690
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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: 2026-07-08T03:53:27Z
audio: Carmina burana: Fortune plango vulnera
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  additional property: Danceability
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Carmina burana: O Fortuna
type: MusicRecording
duration: PT2M21S
duration ms: 141013
explicit: false
by artist: Carl Orff
by artist: Kristjan Järvi
by artist: MDR Leipzig Radio Symphony Orchestra
by artist: MDR Rundfunkchor
by artist: Kiera Duffy
by artist: Mark Panuccio
by artist: Daniel Schmutzhard
by artist: MDR Kinderchor
in album: Carl Orff: Carmina Burana
  type: MusicAlbum
  date published: 2012-09-10
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee6e504ef964f83bd398a4385ef0ce0225cab9177c8f488f21e934d121e49d3. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/USSM11203689.
  date published: 2026-07-29T23:52:38Z
audio: Carmina burana: O Fortuna
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  additional property: Instrumentalness
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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