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Pith Number

pith:DUGDKL55

pith:2021:DUGDKL556UGOKI43DU5NSV2Z5C
not attested not anchored not stored refs pending

Linking disjoint segments into a simple polygon is hard

Kai Jiang, Minghui Jiang, Rain Jiang

arxiv:2108.12812 v2 · 2021-08-29 · cs.CG · cs.CC

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DUGDKL556UGOKI43DU5NSV2Z5C}

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Record completeness

1 Bitcoin timestamp
2 Internet Archive
3 Author claim open · sign in to claim
4 Citations open
5 Replications open
Portable graph bundle live · download bundle · merged state
The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-05T03:10:55.439555Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1d0c352fbdf50ce5239b1d3ad95759e8a23c6d1423a124e10a120135bada998d

Aliases

arxiv: 2108.12812 · arxiv_version: 2108.12812v2 · doi: 10.48550/arxiv.2108.12812 · pith_short_12: DUGDKL556UGO · pith_short_16: DUGDKL556UGOKI43 · pith_short_8: DUGDKL55
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DUGDKL556UGOKI43DU5NSV2Z5C \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1d0c352fbdf50ce5239b1d3ad95759e8a23c6d1423a124e10a120135bada998d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "58d18d6651b97c8a712a4439a92db370ff8944a4c79538e6fe288e2ed157e983",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2021-08-29T10:25:16Z",
    "title_canon_sha256": "17d7410973b7d2021bc354f5404b4952e5ae8ea755caa1039fb6ff6eeb6f9556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12812",
    "kind": "arxiv",
    "version": 2
  }
}