William Burder
type: MusicGroup
genre: opera
popularity: 2
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
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  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ffa609-4ebd-4d97-8249-53a3dc46eeb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ffa609-4ebd-4d97-8249-53a3dc46eeb9.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19ffa609-4ebd-4d97-8249-53a3dc46eeb9
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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 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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f83a3efc50b637900ff97ddacbc4f74189904d3ceae1bacefa31c30ba9e209. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19ffa609-4ebd-4d97-8249-53a3dc46eeb9.json and https://artists.proofprofile.net/proofs/artist/19ffa609-4ebd-4d97-8249-53a3dc46eeb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xa0f83a3efc50b637900ff97ddacbc4f74189904d3ceae1bacefa31c30ba9e209","name":"William Burder","registered_at":"2026-06-15T22:40:45Z","symbol":"NIM0854438","token_address":"0x5bee67d414cb9c9f7867c849aed1edb294e26156","type":"artist","uuid":"19ffa609-4ebd-4d97-8249-53a3dc46eeb9"}
track: Vanessa, Act I Scene 1: Yes, I believe I shall love you (Anatol, Vanessa)
  type: MusicRecording
  duration: PT2M3S
  duration ms: 123600
  explicit: false
  by artist: Samuel Barber
  by artist: Leonard Slatkin
  by artist: BBC Symphony Orchestra
  by artist: William Burder
  by artist: Christine Brewer
  in album: Barber: Vanessa
    type: MusicAlbum
    date published: 2004-10-01
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0414307
  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 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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebef93589101e7ae6aca16e1f54fa18dfb1f6aeee9580f06ee5b772e03fb76a. 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/GBLWD0414307.
    date published: 2026-07-08T03:20:19Z
  audio: Vanessa, Act I Scene 1: Yes, I believe I shall love you (Anatol, Vanessa)
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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