Muriel Harding
type: MusicGroup
genre: opera
popularity: 7
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/68e78ab8-6e2e-43bd-8c9f-e625219027da.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/68e78ab8-6e2e-43bd-8c9f-e625219027da
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e4eeeadd7c9080247c82f54e5cca44186a640db5fad7b4ce42ce66b26b2db86","name":"Muriel Harding","registered_at":"2026-06-17T02:11:31Z","symbol":"NIM1248444","token_address":"0x6de1816963c8d0961c4f19f0523efbd56b5532b2","type":"artist","uuid":"68e78ab8-6e2e-43bd-8c9f-e625219027da"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4eeeadd7c9080247c82f54e5cca44186a640db5fad7b4ce42ce66b26b2db86. 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/68e78ab8-6e2e-43bd-8c9f-e625219027da.json and https://artists.proofprofile.net/proofs/artist/68e78ab8-6e2e-43bd-8c9f-e625219027da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4e4eeeadd7c9080247c82f54e5cca44186a640db5fad7b4ce42ce66b26b2db86","name":"Muriel Harding","registered_at":"2026-06-17T02:11:31Z","symbol":"NIM1248444","token_address":"0x6de1816963c8d0961c4f19f0523efbd56b5532b2","type":"artist","uuid":"68e78ab8-6e2e-43bd-8c9f-e625219027da"}
album: Gilbert & Sullivan: H.M.S. Pinafore
  type: MusicAlbum
  date published: 2002
  track: H.M.S. Pinafore

H.M.S. Pinafore
type: MusicRecording
duration: PT2M49S
duration ms: 169520
explicit: false
by artist: Arthur Sullivan
by artist: William Schwenck Gilbert
by artist: The D'Oyly Carte Opera Chorus
by artist: The D'Oyly Carte Opera Orchestra
by artist: Martyn Green
by artist: Leslie Rands
by artist: Leonard Osborn
by artist: Darrell Fancourt
by artist: Richard Walker
by artist: Radley Flynn
by artist: Muriel Harding
by artist: Joan Gillingham
by artist: Ella Halman
by artist: Isidore Godfrey
in album: Gilbert & Sullivan: H.M.S. Pinafore
  type: MusicAlbum
  date published: 2002
genre: late-romantic-era
genre: victorian-britain
genre: operetta
isrc code: GBJ2F1110349
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1110349
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2212f1508d073cf146d3166697501b86195063a5ca53d95530be2e27dba6ca45. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJ2F1110349.
  date published: 2026-07-08T03:20:19Z
audio: H.M.S. Pinafore
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.51
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.318
  additional property: Speechiness
    type: PropertyValue
    value: 0.105
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.586
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.823
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major