Pith Number

pith:PNYL7I4M

pith:2013:PNYL7I4MVFCKBPD24WNG5IEWVO

not attested not anchored not stored refs pending

Non-congruence of homology Veech groups in genus two

Christian Wei{\ss}

arxiv:1301.6495 v3 · 2013-01-28 · 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{PNYL7I4MVFCKBPD24WNG5IEWVO}

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	2026-05-18T00:44:46.430038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b70bfa38ca944a0bc7ae59a6ea096abaeda6e02dd1cb45759e8e72cb49dc87e

Aliases

arxiv: 1301.6495 · arxiv_version: 1301.6495v3 · doi: 10.48550/arxiv.1301.6495 · pith_short_12: PNYL7I4MVFCK · pith_short_16: PNYL7I4MVFCKBPD2 · pith_short_8: PNYL7I4M

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/PNYL7I4MVFCKBPD24WNG5IEWVO \
  | 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: 7b70bfa38ca944a0bc7ae59a6ea096abaeda6e02dd1cb45759e8e72cb49dc87e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c29e4443f9398c9b26fd3fc71faef77c4ca6cb0b24d051ceb68ecde8b5368ba0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-01-28T09:50:24Z",
    "title_canon_sha256": "f3bc93610fc4325258d3c9978cfea210d3f338159c8d8c8f2d8c30e050d92c21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6495",
    "kind": "arxiv",
    "version": 3
  }
}