Pith Number

pith:HW4YXFTJ

pith:2001:HW4YXFTJ72TAWGILDJKL6OUNQV

not attested not anchored not stored refs pending

A Compactification of the Space of Plane Curves

Cambridge University), Paul Hacking (Trinity College

arxiv:math/0104193 v1 · 2001-04-19 · 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{HW4YXFTJ72TAWGILDJKL6OUNQV}

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.

Cited by

2 papers in Pith

Moduli of Persson surfaces: The compactification via KSBA stable pairs and a generic global Torelli type theorem

Rational homology disk degenerations of elliptic surfaces

Receipt and verification

First computed	2026-07-04T14:35:18.076215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db98b9669fea60b190b1a54bf3a8d85741b6ef06406177e8a73cde7fa5a3f11

Aliases

arxiv: math/0104193 · arxiv_version: math/0104193v1 · doi: 10.48550/arxiv.math/0104193 · pith_short_12: HW4YXFTJ72TA · pith_short_16: HW4YXFTJ72TAWGIL · pith_short_8: HW4YXFTJ

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/HW4YXFTJ72TAWGILDJKL6OUNQV \
  | 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: 3db98b9669fea60b190b1a54bf3a8d85741b6ef06406177e8a73cde7fa5a3f11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "442eba9f599ea08eff1959e720fd9794871d0562a2a9fefc297b7856ad5c0f0c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-04-19T16:24:52Z",
    "title_canon_sha256": "d6d6d554c66f8fd743c120f4ce0047dfc12d58fe5ebeeb1dc4b7907032cba2f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0104193",
    "kind": "arxiv",
    "version": 1
  }
}