Robert John
type: MusicGroup
genre: soft rock
description: Robert John Pedrick Jr. (January 3, 1946 – February 24, 2025), known professionally as Robert John, was an American singer perhaps best known for his 1979 hit single, "Sad Eyes", which reached number
popularity: 39
followers: 20556
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a93d5078e18d91faf2c3607a101768369208d788c8584ff8b5ff2267d3ca355. 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/9b1410b2-9e9e-47fe-8476-4084affe515e.json and https://artists.proofprofile.net/proofs/artist/9b1410b2-9e9e-47fe-8476-4084affe515e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Classic Masters
  type: MusicAlbum
  date published: 2002
  track: Sad Eyes - Remastered 2002
track: Sad Eyes
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  duration: PT4M12S
  duration ms: 252387
  explicit: false
  by artist: Robert John
  in album: Throwback Tunes: 70s
    type: MusicAlbum
    date published: 2017-10-20
  isrc code: USEM30200081
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  additional property: OTSVerifyInstructions
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    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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0e59a4ae7b20104b79c8fb932974953b89b4ebc9ac8c80ae3227cca1dec2a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEM30200081.
    date published: 2026-06-13T12:47:07Z
  audio: Sad Eyes
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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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      value: C
    additional property: Mode Name
      type: PropertyValue
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track: Hey There Lonely Girl

Sad Eyes - Remastered 2002
type: MusicRecording
duration: PT4M13S
duration ms: 253213
explicit: false
by artist: Robert John
in album: Classic Masters
  type: MusicAlbum
  date published: 2002
popularity: 57
isrc code: USEM30200081
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additional property: OTSVerifyInstructions
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  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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0e59a4ae7b20104b79c8fb932974953b89b4ebc9ac8c80ae3227cca1dec2a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEM30200081.
  date published: 2026-06-13T12:47:07Z
audio: Sad Eyes - Remastered 2002
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Hey There Lonely Girl
type: MusicRecording
duration: PT3M0S
duration ms: 180773
explicit: false
by artist: Robert John
in album: Lost Hits Of The 80's (All Original Artists & Versions)
  type: MusicAlbum
  date published: 2010-01-01
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ee4919f9ead552e7a8785c60d5ac034b7fc852365ac60c6d8f8e9799e9d302. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:52:01Z), 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/USEM30200086.
  date published: 2026-07-22T18:52:01Z
audio: Hey There Lonely Girl
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    value: A
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isrc code: USEM30200086
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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