Pith Number

pith:USK6Z5U6

pith:2004:USK6Z5U6RFEDKJ6IWPPS7SIWAT

not attested not anchored not stored refs pending

Nodal degenerations of plane curves and Galois covers

E. Artal, H. Tokunaga, J.I. Cogolludo

arxiv:math/0411328 v1 · 2004-11-15 · math.AG · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USK6Z5U6RFEDKJ6IWPPS7SIWAT}

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	2026-05-18T00:16:51.335433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a495ecf69e89483527c8b3df2fc91604d97d07ecf5d1e91c8bfd0c7074b5e337

Aliases

arxiv: math/0411328 · arxiv_version: math/0411328v1 · doi: 10.48550/arxiv.math/0411328 · pith_short_12: USK6Z5U6RFED · pith_short_16: USK6Z5U6RFEDKJ6I · pith_short_8: USK6Z5U6

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/USK6Z5U6RFEDKJ6IWPPS7SIWAT \
  | 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: a495ecf69e89483527c8b3df2fc91604d97d07ecf5d1e91c8bfd0c7074b5e337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "856baec2f290f48f86617442fbc60fd57b526677565cc8917bf89812a1f78d68",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2004-11-15T14:59:23Z",
    "title_canon_sha256": "2cd7dcaffffd5160bc6eb43f648d4fb71941649c1a1ea2d6fa4fab95425ee256"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0411328",
    "kind": "arxiv",
    "version": 1
  }
}