Pith Number

pith:CNW455AU

pith:2017:CNW455AUGEJ3YWWWFZ5PPVXQXL

not attested not anchored not stored refs pending

Maximal rank in matrix spaces via graph matchings

Roy Meshulam

arxiv:1703.05551 v1 · 2017-03-16 · 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{CNW455AUGEJ3YWWWFZ5PPVXQXL}

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	2026-05-18T00:48:33.955731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

136dcef4143113bc5ad62e7af7d6f0baff33f856b8ada6268b2f2afd45944d79

Aliases

arxiv: 1703.05551 · arxiv_version: 1703.05551v1 · doi: 10.48550/arxiv.1703.05551 · pith_short_12: CNW455AUGEJ3 · pith_short_16: CNW455AUGEJ3YWWW · pith_short_8: CNW455AU

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/CNW455AUGEJ3YWWWFZ5PPVXQXL \
  | 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: 136dcef4143113bc5ad62e7af7d6f0baff33f856b8ada6268b2f2afd45944d79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8486022143340e5ee1264f05cd0816d821bbbaa6c04d1d3a30cdf91cf5318bee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-16T10:32:15Z",
    "title_canon_sha256": "8fdcc6b96cdc1b87b1b2b7933526fa9d1346931675732f41f6c858e72fae3194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05551",
    "kind": "arxiv",
    "version": 1
  }
}