Ricardo Coelho
type: MusicGroup
description: Ricardo Coelho (born 4 November 1998) is a Portuguese marathon canoeist. Career In June 2025, he competed at the 2025 Canoe Marathon European Championships and won a gold medal in the C-2 event,
popularity: 4
followers: 5
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954555
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  value: https://artists.proofprofile.net/proofs/artist/adaf54dd-ffd7-4d58-8a9b-dae6d3e5b7a4.ots
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  value: https://artists.proofprofile.net/proofs/artist/adaf54dd-ffd7-4d58-8a9b-dae6d3e5b7a4.json
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additional property: OTSTimestamp
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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 0x68b0be0749cae421f9e529548b1234b7f118c8bdf7c6a3c15bbedd080c95a4e0. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adaf54dd-ffd7-4d58-8a9b-dae6d3e5b7a4.json and https://artists.proofprofile.net/proofs/artist/adaf54dd-ffd7-4d58-8a9b-dae6d3e5b7a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x68b0be0749cae421f9e529548b1234b7f118c8bdf7c6a3c15bbedd080c95a4e0","name":"Ricardo Coelho","registered_at":"2026-06-20T10:42:59Z","symbol":"NIM1593841","token_address":"0xaf3b3d04e791b94834182742c29b4f844ca336cf","type":"artist","uuid":"adaf54dd-ffd7-4d58-8a9b-dae6d3e5b7a4"}
track: Montes
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  duration: PT2M50S
  duration ms: 170720
  explicit: false
  by artist: Retimbrar
  by artist: Ricardo Coelho
  in album: Levantar do Chão
    type: MusicAlbum
    date published: 2022-09-22
  genre: fado
  genre: traditional-music
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT8EC2203007
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a4406441867c1c6cdf83d87848e3570296fa0a9212d16c0b8af28b067fe8c2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PT8EC2203007.
    date published: 2026-07-02T03:30:09Z
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    additional property: Danceability
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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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    additional property: Mode Name
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