Avery Robinson
type: MusicGroup
description: thumb|200px|Cover of Robinson's "Water Boy", published 1922 Avery Robinson (January 21, 1878 – May 11, 1965 Presto Classical, Avery Robinson page Retrieved July 15, 2007) was an American classical com
popularity: 3
followers: 33
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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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  date published: 2026-06-20T22:44:50Z
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track: Water Boy (Arr. for Theremin & Piano)
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176560
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  by artist: Avery Robinson
  by artist: Clara Rockmore
  by artist: Nadia Reisenberg
  in album: Dvořák, Ravel, Gershwin & Others: Chamber Works
    type: MusicAlbum
    date published: 2017-09-01
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  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991e0826f99372046391e9d23f1187e8ebaf4cf77669a4387d72c29e53bbc13b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USCRS0602084.
    date published: 2026-07-31T02:19:15Z
  audio: Water Boy (Arr. for Theremin & Piano)
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    additional property: Key Name
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