Pith Number

pith:ZW3TKVER

pith:2019:ZW3TKVERAFQYPD4CFD5TP4RXUM

not attested not anchored not stored refs pending

2-Matching Complexes

Julianne Vega

arxiv:1909.10406 v2 · 2019-09-23 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZW3TKVERAFQYPD4CFD5TP4RXUM}

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	2026-07-05T02:10:36.958567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdb73554910161878f8228fb37f237a31b2513df11d01d367a9d1ef88584af7c

Aliases

arxiv: 1909.10406 · arxiv_version: 1909.10406v2 · doi: 10.48550/arxiv.1909.10406 · pith_short_12: ZW3TKVERAFQY · pith_short_16: ZW3TKVERAFQYPD4C · pith_short_8: ZW3TKVER

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/ZW3TKVERAFQYPD4CFD5TP4RXUM \
  | 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: cdb73554910161878f8228fb37f237a31b2513df11d01d367a9d1ef88584af7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251cb12fbefc2cd8f640a1d890ddecd9e8018cc28fc9e41481fb147899da0e43",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-09-23T14:59:42Z",
    "title_canon_sha256": "d5c3335149324bbff9dcc41406593e13368cc394b4a5e5d4a3ea6b9af1b19e92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.10406",
    "kind": "arxiv",
    "version": 2
  }
}