Pith Number

pith:6KYNASS6

pith:2005:6KYNASS6TCEGQF4RY7RHIVDB2R

not attested not anchored not stored refs pending

Rigidity theory for matroids

Jeremy L. Martin, Mike Develin, Victor Reiner

arxiv:math/0503050 v2 · 2005-03-02 · 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{6KYNASS6TCEGQF4RY7RHIVDB2R}

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	2026-05-18T04:11:40.919605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2b0d04a5e9888681791c7e2745461d472165c7bb40f8ddcecff6e943c55a794

Aliases

arxiv: math/0503050 · arxiv_version: math/0503050v2 · doi: 10.48550/arxiv.math/0503050 · pith_short_12: 6KYNASS6TCEG · pith_short_16: 6KYNASS6TCEGQF4R · pith_short_8: 6KYNASS6

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/6KYNASS6TCEGQF4RY7RHIVDB2R \
  | 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: f2b0d04a5e9888681791c7e2745461d472165c7bb40f8ddcecff6e943c55a794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3934590c4e6f3f7a63b0531f6f0199e2e6b5319d205d13ba24dabf3ad389f2b2",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2005-03-02T22:46:09Z",
    "title_canon_sha256": "7e0a528dee6cc7e7ae808ac16b3a16fac006d1617213babca966d8592e8480cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0503050",
    "kind": "arxiv",
    "version": 2
  }
}