Pith Number

pith:R2SJSNXI

pith:2011:R2SJSNXIUFGO73V25X4DUUHUII

not attested not anchored not stored refs pending

Triangulations and Severi varieties

Fr\'ed\'eric Chapoton (ICJ), Laurent Manivel (IF)

arxiv:1109.6490 v1 · 2011-09-29 · math.AG · math.AT · math.CO · 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{R2SJSNXIUFGO73V25X4DUUHUII}

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	2026-05-18T03:07:21.093184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ea49936e8a14cefeebaedf83a50f4420599c8ed75111463e9dec0894e37f3cc

Aliases

arxiv: 1109.6490 · arxiv_version: 1109.6490v1 · doi: 10.48550/arxiv.1109.6490 · pith_short_12: R2SJSNXIUFGO · pith_short_16: R2SJSNXIUFGO73V2 · pith_short_8: R2SJSNXI

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/R2SJSNXIUFGO73V25X4DUUHUII \
  | 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: 8ea49936e8a14cefeebaedf83a50f4420599c8ed75111463e9dec0894e37f3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d14d6f8a76c9aadb50b5850b2d0133d7ad25e9429394c7b24588d0f77a380be7",
    "cross_cats_sorted": [
      "math.AT",
      "math.CO",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-09-29T11:46:28Z",
    "title_canon_sha256": "0074ef1993dec2f8be31cc41c6df9e5decee4660bc285edb25f06fe8e0becf93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6490",
    "kind": "arxiv",
    "version": 1
  }
}