Pith Number

pith:YX7WKZBQ

pith:2009:YX7WKZBQWC6AR67MLN6TV2BMGQ

not attested not anchored not stored refs pending

Espace de Modules Marques des Surfaces Projectives Convexes de Volume Fini

Ludovic Marquis

arxiv:0910.5839 v1 · 2009-10-30 · math.GT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YX7WKZBQWC6AR67MLN6TV2BMGQ}

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	2026-05-18T02:38:18.758783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5ff656430b0bc08fbec5b7d3ae82c341de73376c78caa93d2630e3508f62270

Aliases

arxiv: 0910.5839 · arxiv_version: 0910.5839v1 · doi: 10.48550/arxiv.0910.5839 · pith_short_12: YX7WKZBQWC6A · pith_short_16: YX7WKZBQWC6AR67M · pith_short_8: YX7WKZBQ

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/YX7WKZBQWC6AR67MLN6TV2BMGQ \
  | 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: c5ff656430b0bc08fbec5b7d3ae82c341de73376c78caa93d2630e3508f62270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90ec0c684aaa785ac8ef8d2d1ec0957b3ec674c652e8775fe3619ab9cf228149",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2009-10-30T11:28:44Z",
    "title_canon_sha256": "394b46c3aae12d6c3f3628b5b98e6f7582c387bcf289d6eab6d22cad0484acde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5839",
    "kind": "arxiv",
    "version": 1
  }
}