Pith Number

pith:WCGEGJA5

pith:2018:WCGEGJA5EATNE7DIET7K7VHCEK

not attested not anchored not stored refs pending

Intersections of psi-classes on moduli spaces of m-stable curves

David Ishii Smyth

arxiv:1808.03214 v2 · 2018-08-09 · 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{WCGEGJA5EATNE7DIET7K7VHCEK}

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	2026-05-18T00:07:05.602197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b08c43241d2026d27c6824feafd4e2229f5370b6359f80909fa2abbc69c8d98c

Aliases

arxiv: 1808.03214 · arxiv_version: 1808.03214v2 · doi: 10.48550/arxiv.1808.03214 · pith_short_12: WCGEGJA5EATN · pith_short_16: WCGEGJA5EATNE7DI · pith_short_8: WCGEGJA5

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/WCGEGJA5EATNE7DIET7K7VHCEK \
  | 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: b08c43241d2026d27c6824feafd4e2229f5370b6359f80909fa2abbc69c8d98c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eebe24d9db159a6dd93966d46167ae05826aad2e9124d3911dc41d0467c6a471",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-08-09T16:02:20Z",
    "title_canon_sha256": "63b37d66e8e6b07909be24eab47f80348f89620c9e6c5fae11161ea82c3ba7a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03214",
    "kind": "arxiv",
    "version": 2
  }
}