Pith Number

pith:UW5RMVWX

pith:2013:UW5RMVWXPOHSZZPNJS2SEVOIE7

not attested not anchored not stored refs pending

Partial isomorphisms over finite fields

Pierre-Lo\"ic M\'eliot

arxiv:1303.4313 v2 · 2013-03-18 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UW5RMVWXPOHSZZPNJS2SEVOIE7}

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	2026-05-18T03:13:12.577512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5bb1656d77b8f2ce5ed4cb52255c827f476b1c32cc2166da4ed41c94a28e8d9

Aliases

arxiv: 1303.4313 · arxiv_version: 1303.4313v2 · doi: 10.48550/arxiv.1303.4313 · pith_short_12: UW5RMVWXPOHS · pith_short_16: UW5RMVWXPOHSZZPN · pith_short_8: UW5RMVWX

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/UW5RMVWXPOHSZZPNJS2SEVOIE7 \
  | 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: a5bb1656d77b8f2ce5ed4cb52255c827f476b1c32cc2166da4ed41c94a28e8d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b803a0866e240f44c14be5ee727e9191b0076e228f7f6ca993e776f35544264c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-03-18T16:41:04Z",
    "title_canon_sha256": "932dc3b325b6dc72e2ec9e6fad5e7e44aa951342ca43be3c26b7e641875cb8b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4313",
    "kind": "arxiv",
    "version": 2
  }
}