Pith Number

pith:QPSTFS3F

pith:2017:QPSTFS3FH6YZJX2AKZRJBPRZI5

not attested not anchored not stored refs pending

Geometry of the Wiman Pencil, I: Algebro-Geometric Aspects

Benson Farb, Eduard Looijenga, Igor Dolgachev

arxiv:1709.09256 v2 · 2017-09-26 · 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{QPSTFS3FH6YZJX2AKZRJBPRZI5}

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	2026-05-18T00:19:58.919683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e532cb653fb194df40566290be39476c0d7bf78cf75953179d4be5cf9ced49

Aliases

arxiv: 1709.09256 · arxiv_version: 1709.09256v2 · doi: 10.48550/arxiv.1709.09256 · pith_short_12: QPSTFS3FH6YZ · pith_short_16: QPSTFS3FH6YZJX2A · pith_short_8: QPSTFS3F

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/QPSTFS3FH6YZJX2AKZRJBPRZI5 \
  | 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: 83e532cb653fb194df40566290be39476c0d7bf78cf75953179d4be5cf9ced49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12d65d26e37ff706f1701e88468987dbd6b4ab621a831517099fed627a1c5fdb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-09-26T20:46:33Z",
    "title_canon_sha256": "31d4ca5268dc398e2683cc0ec1eafb4d2e24e430a2eab0abe0da34870072fab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09256",
    "kind": "arxiv",
    "version": 2
  }
}