Leah Navarro
type: MusicGroup
genre: harana
genre: kundiman
genre: opm
genre: p-pop
description: Leah Lopez Navarro is a Filipino singer and activist. She was a prominent singer from late 1970s up to early 1980s. In April 1986, she was one among fifteen singers featured in the song, "Handog ng Pi
popularity: 38
followers: 35249
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additional property: CopyrightChainExplorerURL
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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 0x05e867828d9711f3754ea290a74f991e46941cf4dbc869f279322e16461adf31. 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/2a9e6e52-6cf5-4d53-90e5-093c512b5e9a.json and https://artists.proofprofile.net/proofs/artist/2a9e6e52-6cf5-4d53-90e5-093c512b5e9a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x05e867828d9711f3754ea290a74f991e46941cf4dbc869f279322e16461adf31","name":"Leah Navarro","registered_at":"2026-06-11T14:53:32Z","symbol":"NIM0055142","token_address":"0xd7bfb7a115e91f06b3d4af190959ffd601e8aaef","type":"artist","uuid":"2a9e6e52-6cf5-4d53-90e5-093c512b5e9a"}
album: Re-Issue Series: Leah at Pag-Ibig
  type: MusicAlbum
  date published: 2010-08-19
  track: Isang Mundo, Isang Awit
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147906
    explicit: false
    by artist: Leah Navarro
    in album: Re-Issue Series: Leah at Pag-Ibig
      type: MusicAlbum
      date published: 2010-08-19
    popularity: 33
    isrc code: PHV021010858
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    additional property: OTSTimestamp
      type: PropertyValue
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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 0x87c2ac27f4db97492d8dc76f5b84e07421324b6d9643b579ad6a717def7a1d74. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PHV021010858 — a six-check JSON result.
      date published: 2026-06-13T17:25:41Z
    audio: Isang Mundo, Isang Awit
      type: AudioObject
      additional property: Tempo (BPM)
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        type: PropertyValue
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Instrumentalness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
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      additional property: Key Name
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        value: C
      additional property: Mode Name
        type: PropertyValue
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