Pith Number

pith:XW64OIA7

pith:2013:XW64OIA7YBKV644AESKTMYKUZS

not attested not anchored not stored refs pending

On the Complexity of Barrier Resilience for Fat Regions

Darren Strash, Maarten L\"offler, Matias Korman, Rodrigo I. Silveira

arxiv:1302.4707 v5 · 2013-02-19 · cs.CC · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XW64OIA7YBKV644AESKTMYKUZS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-05-18T00:43:03.445462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdbdc7201fc0555f73802495366154cc99972a0230ae5b3687ce7b8d18f85c92

Aliases

arxiv: 1302.4707 · arxiv_version: 1302.4707v5 · doi: 10.48550/arxiv.1302.4707 · pith_short_12: XW64OIA7YBKV · pith_short_16: XW64OIA7YBKV644A · pith_short_8: XW64OIA7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XW64OIA7YBKV644AESKTMYKUZS \
  | 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: bdbdc7201fc0555f73802495366154cc99972a0230ae5b3687ce7b8d18f85c92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8df8e721adc792861bf559560a5b3cfc83fcae5d2a8b518fa0d2d93301d86b4d",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-02-19T18:54:14Z",
    "title_canon_sha256": "e400b13da2929af34b0b1ce9adfeed384b9b12ba1d2a326bb87f7e07bd4068fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4707",
    "kind": "arxiv",
    "version": 5
  }
}