Lékho
type: MusicGroup
popularity: 7
followers: 443
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f12e69e9f5a8a9bef6ae969beb5d47998ac528b5754d05cf8bf6a40aac7fe29
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953991
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953991
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e65ebb9-0181-434a-93c9-9400f0d332f9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e65ebb9-0181-434a-93c9-9400f0d332f9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e65ebb9-0181-434a-93c9-9400f0d332f9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:47:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f12e69e9f5a8a9bef6ae969beb5d47998ac528b5754d05cf8bf6a40aac7fe29","name":"Lékho","registered_at":"2026-06-16T06:01:37Z","symbol":"NIM0959752","token_address":"0x41464b98ea7a37de24e1e513b568ad2e95379687","type":"artist","uuid":"2e65ebb9-0181-434a-93c9-9400f0d332f9"}
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 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 0x2f12e69e9f5a8a9bef6ae969beb5d47998ac528b5754d05cf8bf6a40aac7fe29. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e65ebb9-0181-434a-93c9-9400f0d332f9.json and https://artists.proofprofile.net/proofs/artist/2e65ebb9-0181-434a-93c9-9400f0d332f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:47:23Z
  text: {"copyright_id":"0x2f12e69e9f5a8a9bef6ae969beb5d47998ac528b5754d05cf8bf6a40aac7fe29","name":"Lékho","registered_at":"2026-06-16T06:01:37Z","symbol":"NIM0959752","token_address":"0x41464b98ea7a37de24e1e513b568ad2e95379687","type":"artist","uuid":"2e65ebb9-0181-434a-93c9-9400f0d332f9"}
album: Inévitable
  type: MusicAlbum
  date published: 2018-11-30
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  date published: 2019-03-08
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  type: MusicAlbum
  date published: 2019-03-08
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  date published: 2020-01-18
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  date published: 2020-02-28
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  date published: 2020-04-09
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  date published: 2020-10-18
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  type: MusicAlbum
  date published: 2020-11-11
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  type: MusicAlbum
  date published: 2021-07-14
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  date published: 2021-12-03
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  type: MusicAlbum
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