Pith Number

pith:EAPCNUZC

pith:2020:EAPCNUZCJ2WXUUWBQRCK5OT2RE

not attested not anchored not stored refs pending

Large rainbow matchings in edge-colored graphs

Debsoumya Chakraborti, Po-Shen Loh

arxiv:2011.04650 v4 · 2020-11-08 · 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{EAPCNUZCJ2WXUUWBQRCK5OT2RE}

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	2026-05-28T02:04:38.255356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

201e26d3224ead7a52c18444aeba7a893ab385863459ff22d20d8a6d83bfe82f

Aliases

arxiv: 2011.04650 · arxiv_version: 2011.04650v4 · doi: 10.48550/arxiv.2011.04650 · pith_short_12: EAPCNUZCJ2WX · pith_short_16: EAPCNUZCJ2WXUUWB · pith_short_8: EAPCNUZC

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/EAPCNUZCJ2WXUUWBQRCK5OT2RE \
  | 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: 201e26d3224ead7a52c18444aeba7a893ab385863459ff22d20d8a6d83bfe82f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54cd1b082b8f85292c2ecf28dace595378046f1c98f7713c70769baea7817f21",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-11-08T18:32:44Z",
    "title_canon_sha256": "9433621898f59b15c9e2053dc9cd7420383f4397dbf539071f4d095d9b68532b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.04650",
    "kind": "arxiv",
    "version": 4
  }
}