Pith Number

pith:D7OEQACG

pith:2016:D7OEQACGZVW5XWH6RF2U2GMU3Y

not attested not anchored not stored refs pending

Rigid cylindrical frameworks with two coincident points

Anthony Nixon, Bill Jackson, Viktoria Kaszanitzky

arxiv:1607.02039 v1 · 2016-07-07 · math.CO · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7OEQACGZVW5XWH6RF2U2GMU3Y}

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	2026-05-18T01:11:22.312634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fdc480046cd6ddbd8fe89754d1994de199875a1c40e416b736385acca688d27

Aliases

arxiv: 1607.02039 · arxiv_version: 1607.02039v1 · doi: 10.48550/arxiv.1607.02039 · pith_short_12: D7OEQACGZVW5 · pith_short_16: D7OEQACGZVW5XWH6 · pith_short_8: D7OEQACG

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/D7OEQACGZVW5XWH6RF2U2GMU3Y \
  | 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: 1fdc480046cd6ddbd8fe89754d1994de199875a1c40e416b736385acca688d27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5e71baeb83b8d2be0a98fd28186515786eb257b0b8d7067ea4c58f1784424aa",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-07-07T14:56:11Z",
    "title_canon_sha256": "c675d46159cb5c3a86d9465e0c39e9db0c4e8cd65bbd1c1d25443e1fd6020025"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.02039",
    "kind": "arxiv",
    "version": 1
  }
}