Pith Number

pith:A6HFKG36

pith:2010:A6HFKG364ECME4RPFEIX37W4NC

not attested not anchored not stored refs pending

Lie geometry of flat fronts in hyperbolic space

Francis E. Burstall, Udo Hertrich-Jeromin, Wayne Rossman

arxiv:1005.4099 v1 · 2010-05-22 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6HFKG364ECME4RPFEIX37W4NC}

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	2026-05-18T04:27:36.070473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

078e551b7ee104c2722f29117dfedc6888b702910b7820276b6367fa9349f565

Aliases

arxiv: 1005.4099 · arxiv_version: 1005.4099v1 · doi: 10.48550/arxiv.1005.4099 · pith_short_12: A6HFKG364ECM · pith_short_16: A6HFKG364ECME4RP · pith_short_8: A6HFKG36

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/A6HFKG364ECME4RPFEIX37W4NC \
  | 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: 078e551b7ee104c2722f29117dfedc6888b702910b7820276b6367fa9349f565

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b6bab278aafc99a8cfed3bcae502f4cffc79ea030ab140b3221a7a54e4806d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-05-22T01:19:21Z",
    "title_canon_sha256": "4c8b9a1e74ea615d5abd255def89eba4c2c6c9d4722078331932e29ad01d650a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4099",
    "kind": "arxiv",
    "version": 1
  }
}