Et Mantis
type: MusicGroup
genre: neofolk
popularity: 6
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffdf12a4a80e7122b6745dcad1ca49bc985514d0cb845381681e49d12ceb6c05
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28b8854f-9538-46e0-8440-501aef921287.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28b8854f-9538-46e0-8440-501aef921287.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28b8854f-9538-46e0-8440-501aef921287
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffdf12a4a80e7122b6745dcad1ca49bc985514d0cb845381681e49d12ceb6c05","name":"Et Mantis","registered_at":"2026-06-16T03:47:04Z","symbol":"NIM0927595","token_address":"0x7ebd4d5625e4681ea31d4bd4b8924141c515098e","type":"artist","uuid":"28b8854f-9538-46e0-8440-501aef921287"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdf12a4a80e7122b6745dcad1ca49bc985514d0cb845381681e49d12ceb6c05. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28b8854f-9538-46e0-8440-501aef921287.json and https://artists.proofprofile.net/proofs/artist/28b8854f-9538-46e0-8440-501aef921287.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xffdf12a4a80e7122b6745dcad1ca49bc985514d0cb845381681e49d12ceb6c05","name":"Et Mantis","registered_at":"2026-06-16T03:47:04Z","symbol":"NIM0927595","token_address":"0x7ebd4d5625e4681ea31d4bd4b8924141c515098e","type":"artist","uuid":"28b8854f-9538-46e0-8440-501aef921287"}
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  type: MusicAlbum
  date published: 2001-10-09
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  type: MusicAlbum
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  type: MusicAlbum
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