Pith Number

pith:PTPWBZ6G

pith:1995:PTPWBZ6GQ3SRC7MBGQVR63JTUL

not attested not anchored not stored refs pending

Severi Degrees in Cogenus 3

J. Harris, R. Pandharipande

arxiv:alg-geom/9504003 v1 · 1995-04-06 · alg-geom · 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{PTPWBZ6GQ3SRC7MBGQVR63JTUL}

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	2026-05-18T01:37:42.964624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cdf60e7c686e5117d81342b1f6d33a2d4aaa24abb58c7b33b813279d9c4b7e7

Aliases

arxiv: alg-geom/9504003 · arxiv_version: alg-geom/9504003v1 · doi: 10.48550/arxiv.alg-geom/9504003 · pith_short_12: PTPWBZ6GQ3SR · pith_short_16: PTPWBZ6GQ3SRC7MB · pith_short_8: PTPWBZ6G

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/PTPWBZ6GQ3SRC7MBGQVR63JTUL \
  | 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: 7cdf60e7c686e5117d81342b1f6d33a2d4aaa24abb58c7b33b813279d9c4b7e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "628c56ee531248a715f52dcbf2dd5942428b98250e28c4ecf9616431f681b90d",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1995-04-06T17:36:40Z",
    "title_canon_sha256": "f16d1378d7089c98a40473591bc19d5dacbf760071d7f0a6e374c4a5661232f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9504003",
    "kind": "arxiv",
    "version": 1
  }
}