Pith Number

pith:UYMAIWHA

pith:2002:UYMAIWHA62TMQWBB64EIXQYNEK

not attested not anchored not stored refs pending

Plane curves and their fundamental groups: Generalizations of Uludag's construction

David Garber

arxiv:math/0207131 v5 · 2002-07-16 · math.GT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYMAIWHA62TMQWBB64EIXQYNEK}

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	2026-05-18T02:41:32.940741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6180458e0f6a6c85821f7088bc30d2289411b46bd4ecbefb087ff1ff7e8ec63

Aliases

arxiv: math/0207131 · arxiv_version: math/0207131v5 · doi: 10.48550/arxiv.math/0207131 · pith_short_12: UYMAIWHA62TM · pith_short_16: UYMAIWHA62TMQWBB · pith_short_8: UYMAIWHA

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/UYMAIWHA62TMQWBB64EIXQYNEK \
  | 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: a6180458e0f6a6c85821f7088bc30d2289411b46bd4ecbefb087ff1ff7e8ec63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6259a29d7c1ee3390ee9d868d67bb766cccd3b68f24a66c3dc898f4cbfa380ee",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2002-07-16T15:14:11Z",
    "title_canon_sha256": "beaba70d97057885f1bda5bd889ab99d2fc8850077ba77a6395d9f7d72a2b307"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0207131",
    "kind": "arxiv",
    "version": 5
  }
}