Pith Number

pith:KODT5A67

pith:2019:KODT5A67QEWH7AGILBQAPVNIL2

not attested not anchored not stored refs pending

The Monsky--Washnitzer topos

Dingxin Zhang

arxiv:1904.09272 v1 · 2019-04-19 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KODT5A67QEWH7AGILBQAPVNIL2}

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	2026-05-17T23:48:07.858257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53873e83df812c7f80c8586007d5a85ea22fb934c27165839aebbcb5122ce54c

Aliases

arxiv: 1904.09272 · arxiv_version: 1904.09272v1 · doi: 10.48550/arxiv.1904.09272 · pith_short_12: KODT5A67QEWH · pith_short_16: KODT5A67QEWH7AGI · pith_short_8: KODT5A67

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/KODT5A67QEWH7AGILBQAPVNIL2 \
  | 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: 53873e83df812c7f80c8586007d5a85ea22fb934c27165839aebbcb5122ce54c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdf19bd55ccac19c8ab630afac73452ee704d1ef7cef1725ca7582df6c72dcee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-04-19T17:20:07Z",
    "title_canon_sha256": "0cb1337df1c59e5b7aa25a02ea53d3676e10b94993a3cc37c3b8391815d6980e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09272",
    "kind": "arxiv",
    "version": 1
  }
}