Linda Martin
type: MusicGroup
description: Linda Martin (born 27 March 1952) is an Irish singer and television presenter from Northern Ireland. She is best known as the winner of the 1992 Eurovision Song Contest during which she represented Ir
popularity: 14
followers: 1034
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 0x379cb10ac22958e3d875f664aac2eb86953cc2c330c56bbca0e56b883c4125a6. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad7827d7-54aa-4fd6-91e4-5674a62f8c40.json and https://artists.proofprofile.net/proofs/artist/ad7827d7-54aa-4fd6-91e4-5674a62f8c40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
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album: Terminal 3
  type: MusicAlbum
  date published: 1984-09-17
  track: Terminal 3
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195826
    explicit: false
    by artist: Linda Martin
    in album: Terminal 3
      type: MusicAlbum
      date published: 1984-09-17
    isrc code: GBARL0901194
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    additional property: OTSVerificationAPI
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbd91b01b1e88c702d61b6642336bfee67ae6d16ed337823dbcd411e6f01d5a. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBARL0901194.
      date published: 2026-07-18T16:22:28Z
    audio: Terminal 3
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.328
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      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: 0.305
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.47
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2016-04-08
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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