jO Mettraux
type: MusicGroup
genre: french indie pop
genre: french jazz
popularity: 5
followers: 426
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5df2ef0660520cc73920fe10e4c667ec61cb7acd8901d0ef4f392afd16c3287f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5df2ef0660520cc73920fe10e4c667ec61cb7acd8901d0ef4f392afd16c3287f","name":"jO Mettraux","registered_at":"2026-06-20T16:34:09Z","symbol":"NIM1655472","token_address":"0xf72a300b8c79e1986e05da9e88ccc339b96a4084","type":"artist","uuid":"ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d"}
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 0x5df2ef0660520cc73920fe10e4c667ec61cb7acd8901d0ef4f392afd16c3287f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d.json and https://artists.proofprofile.net/proofs/artist/ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x5df2ef0660520cc73920fe10e4c667ec61cb7acd8901d0ef4f392afd16c3287f","name":"jO Mettraux","registered_at":"2026-06-20T16:34:09Z","symbol":"NIM1655472","token_address":"0xf72a300b8c79e1986e05da9e88ccc339b96a4084","type":"artist","uuid":"ba3c6cb5-d2c5-4b73-9c8f-511e38cdf93d"}
album: Talons aiguilles et bottes de foin
  type: MusicAlbum
  date published: 2009-06-18
album: Talons aiguilles et bottes de foin
  type: MusicAlbum
  date published: 2009-06-18
album: Sirènes allumées
  type: MusicAlbum
  date published: 2011-09-23
album: Sirènes Allumées
  type: MusicAlbum
  date published: 2011-09-23
album: Bonnet C
  type: MusicAlbum
  date published: 2014-07-29
album: Bonnet C
  type: MusicAlbum
  date published: 2014-07-29
album: Bonnet C
  type: MusicAlbum
  date published: 2014-08-18
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  type: MusicAlbum
  date published: 2015-12-18
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  date published: 2018-01-08
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  date published: 2018-01-08
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  type: MusicAlbum
  date published: 2018-01-08
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  date published: 2018-09-14
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  type: MusicAlbum
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  type: MusicAlbum
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