Pith Number

pith:INUWEUV5

pith:2009:INUWEUV56KYIB2R6ERBC45BHME

not attested not anchored not stored refs pending

A Diophantine Frobenius problem related to Riemann surfaces

Anthony Weaver, Cormac O'Sullivan

arxiv:0912.2513 v1 · 2009-12-13 · math.NT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{INUWEUV56KYIB2R6ERBC45BHME}

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	2026-05-18T04:02:36.390880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43696252bdf2b080ea3e24422e7427612c74853796229a38d4b90d92ac7eec6b

Aliases

arxiv: 0912.2513 · arxiv_version: 0912.2513v1 · doi: 10.48550/arxiv.0912.2513 · pith_short_12: INUWEUV56KYI · pith_short_16: INUWEUV56KYIB2R6 · pith_short_8: INUWEUV5

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/INUWEUV56KYIB2R6ERBC45BHME \
  | 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: 43696252bdf2b080ea3e24422e7427612c74853796229a38d4b90d92ac7eec6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12876b94c7ca935db313677fa9c90dd5ca1bdba3c52d7bc7f96a8cf667dc32a",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2009-12-13T16:24:13Z",
    "title_canon_sha256": "1fc060f16c2f284f95cecd45491a90b6d23778acbc485b2fde71ad4f195531ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2513",
    "kind": "arxiv",
    "version": 1
  }
}