Norman Mackay
type: MusicGroup
description: Norman Mackay (26 May 1902 – after 1935) was a Scottish professional footballer who played in the Football League for Aston Villa, Plymouth Argyle and Southend United. He played as a right half or ins
popularity: 5
followers: 222
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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 0x078b8924a0d1620bf11a16bc11860cb50b1bbb4d6ff3a9abb46772f537696064. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4075fbce-6f48-4594-b66f-ff9d1aeb00d8.json and https://artists.proofprofile.net/proofs/artist/4075fbce-6f48-4594-b66f-ff9d1aeb00d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
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album: The Perfect Squeeze
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  date published: 2008-01-01
album: Waltz in Em
  type: MusicAlbum
  date published: 2019-09-18
album: The Inventor (Solo Piano)
  type: MusicAlbum
  date published: 2019-10-28
album: The Inventor
  type: MusicAlbum
  date published: 2019-11-18
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    by artist: Norman Mackay
    in album: The Inventor
      type: MusicAlbum
      date published: 2019-11-18
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5616101c3f4deb131f5979ff38886b18b403ebfdc4fb90c1d56eff28c2fd0da. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:25:02Z), 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/UKSFK1900001.
      date published: 2026-07-20T20:25:02Z
    audio: The Inventor
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      additional property: Tempo (BPM)
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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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album: Gellatly's March (Radio Edit)
  type: MusicAlbum
  date published: 2020-06-26
album: Ian Mackay (String Quartet)
  type: MusicAlbum
  date published: 2020-12-04