Pith Number

pith:U3RKKZZQ

pith:2016:U3RKKZZQ6QQKKPX75425SUO7DA

not attested not anchored not stored refs pending

Characterizing circles by a convex combinatorial property

G\'abor Cz\'edli

arxiv:1611.09331 v4 · 2016-11-28 · math.MG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U3RKKZZQ6QQKKPX75425SUO7DA}

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	2026-05-18T00:39:47.133870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6e2a56730f420a53effef35d951df183cf0e8426db1614b04327336b8db1b28

Aliases

arxiv: 1611.09331 · arxiv_version: 1611.09331v4 · doi: 10.48550/arxiv.1611.09331 · pith_short_12: U3RKKZZQ6QQK · pith_short_16: U3RKKZZQ6QQKKPX7 · pith_short_8: U3RKKZZQ

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/U3RKKZZQ6QQKKPX75425SUO7DA \
  | 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: a6e2a56730f420a53effef35d951df183cf0e8426db1614b04327336b8db1b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93fb0b046f43b925c2d47981d89cc6fe2cc9892c512993ed5b057ad15cfa5034",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2016-11-28T20:37:03Z",
    "title_canon_sha256": "d91834d97f5663758b857cd64f824c06b937885a70442dbdab46d825dabc90b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09331",
    "kind": "arxiv",
    "version": 4
  }
}