Pith Number

pith:H3YM5HDN

pith:2007:H3YM5HDNOC5RWDNOVUZQ3ECNPB

not attested not anchored not stored refs pending

The Euler characteristic of local systems on the moduli of curves and abelian varieties of genus three

Gerard van der Geer, Jonas Bergstr\"om

arxiv:0705.0293 v1 · 2007-05-02 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3YM5HDNOC5RWDNOVUZQ3ECNPB}

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	2026-05-18T02:58:12.746281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef0ce9c6d70bb1b0daead330d904d786bfdff9e030039889cb41920ea8d23a4

Aliases

arxiv: 0705.0293 · arxiv_version: 0705.0293v1 · doi: 10.48550/arxiv.0705.0293 · pith_short_12: H3YM5HDNOC5R · pith_short_16: H3YM5HDNOC5RWDNO · pith_short_8: H3YM5HDN

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/H3YM5HDNOC5RWDNOVUZQ3ECNPB \
  | 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: 3ef0ce9c6d70bb1b0daead330d904d786bfdff9e030039889cb41920ea8d23a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddbff856e2f21e319266234dd2b7e33299fb61cbf2887d0eec3de6babe14f970",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-05-02T14:22:13Z",
    "title_canon_sha256": "ad7a19233ba5f33a82aa578bdd055d2bc93bca73f0b62cb67c8fdd838128e533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0293",
    "kind": "arxiv",
    "version": 1
  }
}