Pith Number

pith:S3X4BR44

pith:2019:S3X4BR44QMDYEG7V3LHWVSDQYF

not attested not anchored not stored refs pending

Topological computing of arrangements with (co)chains

Alberto Paoluzzi, Antonio DiCarlo, Francesco Furiani, Giorgio Scorzelli, Giulio Martella, Vadim Shapiro

arxiv:1911.08130 v1 · 2019-11-19 · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3X4BR44QMDYEG7V3LHWVSDQYF}

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	2026-07-05T00:20:25.445590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96efc0c79c8307821bf5dacf6ac870c1505f241d81eec4a8efe502ec18ebf058

Aliases

arxiv: 1911.08130 · arxiv_version: 1911.08130v1 · doi: 10.48550/arxiv.1911.08130 · pith_short_12: S3X4BR44QMDY · pith_short_16: S3X4BR44QMDYEG7V · pith_short_8: S3X4BR44

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/S3X4BR44QMDYEG7V3LHWVSDQYF \
  | 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: 96efc0c79c8307821bf5dacf6ac870c1505f241d81eec4a8efe502ec18ebf058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a68005338fb51ecf5d0ddf60df0c3222872bd05a378f58c3c3552e9fa0e48f1b",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-11-19T07:21:03Z",
    "title_canon_sha256": "f0386b81f21c859c54a2abc54bec11fc3bfe3af7af1950fd513491689b1015d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.08130",
    "kind": "arxiv",
    "version": 1
  }
}