Lawn Darts
type: MusicGroup
description: thumb|upright=1.3|A package of lawn darts with metal tips Lawn darts (also known as javelin darts, Jarts, lawn jarts, or yard darts) is a lawn game for two players or teams. A lawn dart set usually in
popularity: 2
followers: 429
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86e3e035b4a37bd8d9360c1f323e1588cbbe2f96fea58931a01d6d2a418e32d8
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/c16bf4a5-fe53-4549-88d8-761ef9412d8f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c16bf4a5-fe53-4549-88d8-761ef9412d8f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c16bf4a5-fe53-4549-88d8-761ef9412d8f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86e3e035b4a37bd8d9360c1f323e1588cbbe2f96fea58931a01d6d2a418e32d8","name":"Lawn Darts","registered_at":"2026-06-20T19:48:50Z","symbol":"NIM1696852","token_address":"0x8d169fc42deca5e58a53b64087d0440dc9b5d06a","type":"artist","uuid":"c16bf4a5-fe53-4549-88d8-761ef9412d8f"}
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 0x86e3e035b4a37bd8d9360c1f323e1588cbbe2f96fea58931a01d6d2a418e32d8. 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/c16bf4a5-fe53-4549-88d8-761ef9412d8f.json and https://artists.proofprofile.net/proofs/artist/c16bf4a5-fe53-4549-88d8-761ef9412d8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x86e3e035b4a37bd8d9360c1f323e1588cbbe2f96fea58931a01d6d2a418e32d8","name":"Lawn Darts","registered_at":"2026-06-20T19:48:50Z","symbol":"NIM1696852","token_address":"0x8d169fc42deca5e58a53b64087d0440dc9b5d06a","type":"artist","uuid":"c16bf4a5-fe53-4549-88d8-761ef9412d8f"}
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