Lac Seul
type: MusicGroup
genre: jungle
description: Lac Seul is a large, crescent-shaped reservoir in Kenora District, northwestern Ontario, Canada. It is approximately long. It has a maximum (regulated) depth of 47.2 m, with a surface elevation of 35
popularity: 2
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x245dd87abfa65906df2b54d56af1a365c23178e32e8e954d34ef97f8e639d93d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da29fe60-0ce7-4604-b35e-a171b34b455c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da29fe60-0ce7-4604-b35e-a171b34b455c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/da29fe60-0ce7-4604-b35e-a171b34b455c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x245dd87abfa65906df2b54d56af1a365c23178e32e8e954d34ef97f8e639d93d","name":"Lac Seul","registered_at":"2026-06-21T04:02:54Z","symbol":"NIM1813858","token_address":"0x36ac05adee9b7ae6e325a3259977b1369e0e4b29","type":"artist","uuid":"da29fe60-0ce7-4604-b35e-a171b34b455c"}
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 0x245dd87abfa65906df2b54d56af1a365c23178e32e8e954d34ef97f8e639d93d. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da29fe60-0ce7-4604-b35e-a171b34b455c.json and https://artists.proofprofile.net/proofs/artist/da29fe60-0ce7-4604-b35e-a171b34b455c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x245dd87abfa65906df2b54d56af1a365c23178e32e8e954d34ef97f8e639d93d","name":"Lac Seul","registered_at":"2026-06-21T04:02:54Z","symbol":"NIM1813858","token_address":"0x36ac05adee9b7ae6e325a3259977b1369e0e4b29","type":"artist","uuid":"da29fe60-0ce7-4604-b35e-a171b34b455c"}
album: Districts
  type: MusicAlbum
  date published: 2016-08-11
album: Kenora
  type: MusicAlbum
  date published: 2017-05-18
album: Lac Seul
  type: MusicAlbum
  date published: 2022-12-12
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  type: MusicAlbum
  date published: 2023-08-04
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  type: MusicAlbum
  date published: 2023-09-28
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  type: MusicAlbum
  date published: 2024-03-29
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-01-31