Pith Number

pith:VWIPGELC

pith:2015:VWIPGELCSRKJARY3D7XWT7HJPE

not attested not anchored not stored refs pending

Small eigenvalues of surfaces of finite type

Henrik Matthiesen, Sugata Mondal, Werner Ballmann

arxiv:1506.06541 v1 · 2015-06-22 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VWIPGELCSRKJARY3D7XWT7HJPE}

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	2026-05-17T23:53:34.468712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad90f31162945490471b1fef69fce9791453c778c2905da7aa8e46e792ec75df

Aliases

arxiv: 1506.06541 · arxiv_version: 1506.06541v1 · doi: 10.48550/arxiv.1506.06541 · pith_short_12: VWIPGELCSRKJ · pith_short_16: VWIPGELCSRKJARY3 · pith_short_8: VWIPGELC

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/VWIPGELCSRKJARY3D7XWT7HJPE \
  | 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: ad90f31162945490471b1fef69fce9791453c778c2905da7aa8e46e792ec75df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38e9cdab68632a1fe5b1eeacc7071e6a62957401becb52ff1dd5165d4d9f3cea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-06-22T10:34:22Z",
    "title_canon_sha256": "2b144a395d4260eea55c19da75084ca01a0870ef5753b582d3bd03afd9889453"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06541",
    "kind": "arxiv",
    "version": 1
  }
}