Pith Number

pith:24DJANYV

pith:2019:24DJANYVH5MHBSA4H3333VZDZ6

not attested not anchored not stored refs pending

Singular Welschinger invariants

Eugenii Shustin

arxiv:1907.00461 v1 · 2019-06-30 · 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{24DJANYVH5MHBSA4H3333VZDZ6}

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	2026-05-17T23:41:51.612100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7069037153f5870c81c3ef7bdd723cfbe5ba6f72cea5ca3891d27ba1f52f07b

Aliases

arxiv: 1907.00461 · arxiv_version: 1907.00461v1 · doi: 10.48550/arxiv.1907.00461 · pith_short_12: 24DJANYVH5MH · pith_short_16: 24DJANYVH5MHBSA4 · pith_short_8: 24DJANYV

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/24DJANYVH5MHBSA4H3333VZDZ6 \
  | 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: d7069037153f5870c81c3ef7bdd723cfbe5ba6f72cea5ca3891d27ba1f52f07b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2274aa051c7b1912ba65b15aa68c10443c56f3ffa810c7b9a67ade873985e5f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-06-30T21:08:25Z",
    "title_canon_sha256": "b10a5234abb6197954a0076fd0133cc1582f55361dfdf78b87f3ca1ec7585046"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00461",
    "kind": "arxiv",
    "version": 1
  }
}