Pith Number

pith:XCJE5ZCK

pith:2009:XCJE5ZCKWBMH2QSH7OWAVSNLC7

not attested not anchored not stored refs pending

Products and h-homogeneity

Andrea Medini

arxiv:0911.1023 v2 · 2009-11-05 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCJE5ZCKWBMH2QSH7OWAVSNLC7}

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	2026-05-18T04:07:06.870204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8924ee44ab0587d4247fbac0ac9ab17fe5f45c87c039727f61cd8fc3606f124

Aliases

arxiv: 0911.1023 · arxiv_version: 0911.1023v2 · doi: 10.48550/arxiv.0911.1023 · pith_short_12: XCJE5ZCKWBMH · pith_short_16: XCJE5ZCKWBMH2QSH · pith_short_8: XCJE5ZCK

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/XCJE5ZCKWBMH2QSH7OWAVSNLC7 \
  | 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: b8924ee44ab0587d4247fbac0ac9ab17fe5f45c87c039727f61cd8fc3606f124

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "887ef28c9e947bd210268d41d61266356998ca6edd5890c27ae821e7013bd7e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2009-11-05T20:48:36Z",
    "title_canon_sha256": "4a259257507c000336852dbda3baa4eaabcaf4912c58148d4d0962a6d28b9d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1023",
    "kind": "arxiv",
    "version": 2
  }
}