Pith Number

pith:QLAHFXUH

pith:2013:QLAHFXUH7UINF3EAH6CK47VRPL

not attested not anchored not stored refs pending

Hans Grauert (1930-2011)

Alan Huckleberry

arxiv:1303.6933 v1 · 2013-03-27 · math.HO · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLAHFXUH7UINF3EAH6CK47VRPL}

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	2026-05-18T03:29:39.297039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82c072de87fd10d2ec803f84ae7eb17aefd67fc01f580f3535701b45edc06ff7

Aliases

arxiv: 1303.6933 · arxiv_version: 1303.6933v1 · doi: 10.48550/arxiv.1303.6933 · pith_short_12: QLAHFXUH7UIN · pith_short_16: QLAHFXUH7UINF3EA · pith_short_8: QLAHFXUH

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/QLAHFXUH7UINF3EAH6CK47VRPL \
  | 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: 82c072de87fd10d2ec803f84ae7eb17aefd67fc01f580f3535701b45edc06ff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7e0b8c775daa2e3b247930de4398783033f135f4c31a042433a1420a1cbd245",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2013-03-27T19:23:57Z",
    "title_canon_sha256": "d2d8542f7e4be2271111c10c38b31ba0cd631ba4e6f985591cafa5b56439465a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6933",
    "kind": "arxiv",
    "version": 1
  }
}