Pith Number

pith:ZFIXLBET

pith:2009:ZFIXLBETTGECQP5FPHFDDIFYUN

not attested not anchored not stored refs pending

Constant Angle Surfaces in a warped product

Franki Dillen, Joeri Van der Veken, Luc Vrancken, Marian Ioan Munteanu

arxiv:0908.1180 v1 · 2009-08-08 · 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{ZFIXLBETTGECQP5FPHFDDIFYUN}

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	2026-05-18T04:19:43.960992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9517584939988283fa579ca31a0b8a355ed50838cfee742e32cfd257c1a906e

Aliases

arxiv: 0908.1180 · arxiv_version: 0908.1180v1 · doi: 10.48550/arxiv.0908.1180 · pith_short_12: ZFIXLBETTGEC · pith_short_16: ZFIXLBETTGECQP5F · pith_short_8: ZFIXLBET

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/ZFIXLBETTGECQP5FPHFDDIFYUN \
  | 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: c9517584939988283fa579ca31a0b8a355ed50838cfee742e32cfd257c1a906e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b051c9d838080c0de9606d19a9462786e73cb202e0ae5844b609c9c9a49ebc6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-08T18:17:39Z",
    "title_canon_sha256": "1c2f0d7fe105bb9bfeab5145791a900dcd766d427f32eb2fff33199f89bde75d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1180",
    "kind": "arxiv",
    "version": 1
  }
}