Pith Number

pith:NWXM6NYL

pith:2012:NWXM6NYL3E2SV4MDNFAUQXSH2U

not attested not anchored not stored refs pending

How many colors guarantee a rainbow matching?

Benny Sudakov, Roman Glebov, Tibor Szab\'o

arxiv:1211.0793 v1 · 2012-11-05 · 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{NWXM6NYL3E2SV4MDNFAUQXSH2U}

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	2026-05-18T03:41:31.530142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6daecf370bd9352af1836941485e47d52896d95dc1957f541e8ce8402660af80

Aliases

arxiv: 1211.0793 · arxiv_version: 1211.0793v1 · doi: 10.48550/arxiv.1211.0793 · pith_short_12: NWXM6NYL3E2S · pith_short_16: NWXM6NYL3E2SV4MD · pith_short_8: NWXM6NYL

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/NWXM6NYL3E2SV4MDNFAUQXSH2U \
  | 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: 6daecf370bd9352af1836941485e47d52896d95dc1957f541e8ce8402660af80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5fa8fdafb89347f9451634648159a06bac4ff5b14c9ec074a55a0acac7cab97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-05T08:55:38Z",
    "title_canon_sha256": "c354240e093bab469e4beb034c7d4874f55cb44dd99c3de867c7132473ebefce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0793",
    "kind": "arxiv",
    "version": 1
  }
}