Holcombe Waller
type: MusicGroup
genre: baroque pop
description: Holcombe Waller is an American composer, singer and performance artist. Waller has self-released three albums of varying styles. His work first received international attention with his 2001 album Ex
popularity: 5
followers: 971
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400fc10156b81941579707186f2f2e4e8b39fbd80fe1ca2853198ea8a0607ec6. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/375d374d-c395-4a86-ad9f-2eaa455c7e2f.json and https://artists.proofprofile.net/proofs/artist/375d374d-c395-4a86-ad9f-2eaa455c7e2f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T23:38:33Z
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album: Troubled Times
  type: MusicAlbum
  date published: 2005-01-01
album: Into the Dark Unknown
  type: MusicAlbum
  date published: 2011-02-15
album: Into the Dark Unknown
  type: MusicAlbum
  date published: 2011-05-24
album: Into the Dark Unknown
  type: MusicAlbum
  date published: 2011-07-05
album: Into the Dark Unknown
  type: MusicAlbum
  date published: 2011-07-05
  track: Hardliners
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270480
    explicit: false
    by artist: Holcombe Waller
    in album: Into the Dark Unknown
      type: MusicAlbum
      date published: 2011-07-05
    genre: baroque pop
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    additional property: OTSTimestamp
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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
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388837a7427b59d79d1c5efb8c75306ea88d7202bd91e887578fffd8923ec02. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9CX0900011 — a six-check JSON result.
      date published: 2026-07-20T18:54:07Z
    audio: Hardliners
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
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        value: 0.509
      additional property: Energy
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        value: 0.388
      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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        value: 0.065
      additional property: Liveness
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        value: 0.092
      additional property: Valence (Positivity)
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        value: 0.241
      additional property: Loudness (dB)
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        value: -9.506
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Into the Dark Unknown
  type: MusicAlbum
  date published: 2011-07-05