Pith Number

pith:T44JSNQD

pith:2016:T44JSNQDZZ2BWPUUULDTSMTP3G

not attested not anchored not stored refs pending

Symmetric Graphs have symmetric Matchings

Jan Fricke

arxiv:1607.07426 v1 · 2016-07-25 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T44JSNQDZZ2BWPUUULDTSMTP3G}

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	2026-05-18T01:10:33.963299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f38993603ce741b3e94a2c739326fd9afea73cfb2b5595006c3cf0c1fd0419c

Aliases

arxiv: 1607.07426 · arxiv_version: 1607.07426v1 · doi: 10.48550/arxiv.1607.07426 · pith_short_12: T44JSNQDZZ2B · pith_short_16: T44JSNQDZZ2BWPUU · pith_short_8: T44JSNQD

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/T44JSNQDZZ2BWPUUULDTSMTP3G \
  | 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: 9f38993603ce741b3e94a2c739326fd9afea73cfb2b5595006c3cf0c1fd0419c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "836f2f77c364e3c33293e9998cd40cf8742295bbe3bbd67e8c7a91842c9ed170",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2016-07-25T19:45:45Z",
    "title_canon_sha256": "4481ea12e79cd5fab2a2bbb96b65e5949e0e1de70a3ebe4e513a2204cb1d193a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07426",
    "kind": "arxiv",
    "version": 1
  }
}