Benoît Poher
type: MusicGroup
description: Benoît Poher (; born 27 June 1979) is a French singer, songwriter and lyricist. He is the lead singer of French rock band Kyo and was the lead singer in the supergroup Empyr. Early life Poher was bor
popularity: 10
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42ec87c6d025a1ed780aa6e53c56df7fddf5c900317decfda0547492b2e57524
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dd522da-f38c-48aa-9d3f-440475a3ad19.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dd522da-f38c-48aa-9d3f-440475a3ad19.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0dd522da-f38c-48aa-9d3f-440475a3ad19
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42ec87c6d025a1ed780aa6e53c56df7fddf5c900317decfda0547492b2e57524","name":"Benoît Poher","registered_at":"2026-06-15T18:24:56Z","symbol":"NIM0793441","token_address":"0xe73f233f6475000bef0e155ecd63d08c5265952d","type":"artist","uuid":"0dd522da-f38c-48aa-9d3f-440475a3ad19"}
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 0x42ec87c6d025a1ed780aa6e53c56df7fddf5c900317decfda0547492b2e57524. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dd522da-f38c-48aa-9d3f-440475a3ad19.json and https://artists.proofprofile.net/proofs/artist/0dd522da-f38c-48aa-9d3f-440475a3ad19.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T04:55:23Z
  text: {"copyright_id":"0x42ec87c6d025a1ed780aa6e53c56df7fddf5c900317decfda0547492b2e57524","name":"Benoît Poher","registered_at":"2026-06-15T18:24:56Z","symbol":"NIM0793441","token_address":"0xe73f233f6475000bef0e155ecd63d08c5265952d","type":"artist","uuid":"0dd522da-f38c-48aa-9d3f-440475a3ad19"}