Pith Number

pith:ZK5OVTA5

pith:2011:ZK5OVTA5R6QWRKP2QJL24UKYEC

not attested not anchored not stored refs pending

Two-dimensional slices of non-pseudoconvex open sets

Nikolai Nikolov, Peter Pflug

arxiv:1103.4323 v1 · 2011-03-22 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZK5OVTA5R6QWRKP2QJL24UKYEC}

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	2026-05-18T03:40:38.819707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cabaeacc1d8fa168a9fa8257ae51582088b0f8cdb041a4c61df334e2661c9bb3

Aliases

arxiv: 1103.4323 · arxiv_version: 1103.4323v1 · doi: 10.48550/arxiv.1103.4323 · pith_short_12: ZK5OVTA5R6QW · pith_short_16: ZK5OVTA5R6QWRKP2 · pith_short_8: ZK5OVTA5

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/ZK5OVTA5R6QWRKP2QJL24UKYEC \
  | 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: cabaeacc1d8fa168a9fa8257ae51582088b0f8cdb041a4c61df334e2661c9bb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2901bf7dbbeb3f62df7d02e1857c921c05c2d0ca24f08fec756e7ff0720de1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2011-03-22T17:39:38Z",
    "title_canon_sha256": "d9ad0b1e33f0f95ec65b931f9e688646375d958dccceca050eea4b6ff95b29f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4323",
    "kind": "arxiv",
    "version": 1
  }
}