Pith Number

pith:EHWSV2AP

pith:2020:EHWSV2APV7F5FEYEQE26DFXKPA

not attested not anchored not stored refs pending

Rainbow paths and large rainbow matchings

Eli Berger, Maria Chudnovsky, Ron Aharoni, Shira Zerbib

arxiv:2012.14992 v3 · 2020-12-30 · 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{EHWSV2APV7F5FEYEQE26DFXKPA}

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	2026-07-05T03:20:33.691580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21ed2ae80fafcbd293048135e196ea781c57d64b3929dabaa01dc97f9c47224b

Aliases

arxiv: 2012.14992 · arxiv_version: 2012.14992v3 · doi: 10.48550/arxiv.2012.14992 · pith_short_12: EHWSV2APV7F5 · pith_short_16: EHWSV2APV7F5FEYE · pith_short_8: EHWSV2AP

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/EHWSV2APV7F5FEYEQE26DFXKPA \
  | 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: 21ed2ae80fafcbd293048135e196ea781c57d64b3929dabaa01dc97f9c47224b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4153f8ba29d2870a215e585bbbf3b06466ba186b26963c3a4c4c450debe9f9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-12-30T00:55:59Z",
    "title_canon_sha256": "019cd7465ed9841a3a1a5f33dd65083dde6c26a1d44fef46f50885a772d5116d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.14992",
    "kind": "arxiv",
    "version": 3
  }
}