David Arden
type: MusicGroup
description: David Arden is an Australian singer-songwriter and Aboriginal activist. Career Arden is a Kokatha and a Gunditjmara songman. He has performed with Archie Roach, Ruby Hunter, Tiddas, Bart Willoughby
popularity: 35
followers: 237
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5e736f678465d2ddaf84e4f006646bb52d25f9bc6af6f56f7501c7495062c4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecf71508-b318-4528-8d63-89db4f07ef3b.json and https://artists.proofprofile.net/proofs/artist/ecf71508-b318-4528-8d63-89db4f07ef3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Arden, David - Contemporary Piano Music: Piano Music By Part, Gorecki And Ustvolskaya
  type: MusicAlbum
  date published: 1995-05-23
album: Darmstadt Aural Documents, Box 1 - Composers-Conductors
  type: MusicAlbum
  date published: 2013-08-01
album: Darmstadt Aural Documents, Box 4: Pianists
  type: MusicAlbum
  date published: 2017-01-06
album: Carson Kievman: The Temporary & Tentative Extended Piano
  type: MusicAlbum
  date published: 2007-01-01
album: Luciano Berio - The Complete Works For Solo Piano
  type: MusicAlbum
  date published: 1996
  track: Wasserklavier
  track: Cinque Variazioni
album: Earle Brown: Music For Piano(s) 1951-1995
  type: MusicAlbum
  date published: 1996
album: MEETRA - The Ballad Of James Arden
  type: MusicAlbum
  date published: 2024-01-26
album: Call It Out
  type: MusicAlbum
  date published: 2024-01-26

Wasserklavier
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duration: PT2M2S
duration ms: 122840
explicit: false
by artist: David Arden
in album: Luciano Berio - The Complete Works For Solo Piano
  type: MusicAlbum
  date published: 1996
isrc code: US87H8611204
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additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-13T12:47:07+00:00
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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d892d6fdb7d2ce1fba5779ce046cdccedcc1cddd29b0db96d0efb1dcf8bab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US87H8611204.
  date published: 2026-06-13T15:41:10Z
audio: Wasserklavier
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 78.685
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.32
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -43.77
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    value: Bb
  additional property: Mode Name
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Cinque Variazioni
type: MusicRecording
duration: PT9M1S
duration ms: 541760
explicit: false
by artist: David Arden
in album: Luciano Berio - The Complete Works For Solo Piano
  type: MusicAlbum
  date published: 1996
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc201e718076a2064c38fd8d5b72134dca79b8845711bff5df41806961b765c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US87H8611203.
  date published: 2026-07-31T18:48:12Z
audio: Cinque Variazioni
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  additional property: Danceability
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  additional property: Energy
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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
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.415
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: US87H8611203
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US87H8611203
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12+00:00
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