Pith Number

pith:EL3ME7FE

pith:2015:EL3ME7FETNQIQAYRAMAKWE3GES

not attested not anchored not stored refs pending

A sunflower anti-Ramsey theorem and its applications

Edgardo Rold\'an-Pensado, Leonardo Mart\'inez-Sandoval, Miguel Raggi

arxiv:1505.05170 v1 · 2015-05-19 · 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{EL3ME7FETNQIQAYRAMAKWE3GES}

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	2026-05-18T02:03:59.250966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22f6c27ca49b608803110300ab1366249cba01f2d8517713fb646e0dfea22db9

Aliases

arxiv: 1505.05170 · arxiv_version: 1505.05170v1 · doi: 10.48550/arxiv.1505.05170 · pith_short_12: EL3ME7FETNQI · pith_short_16: EL3ME7FETNQIQAYR · pith_short_8: EL3ME7FE

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/EL3ME7FETNQIQAYRAMAKWE3GES \
  | 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: 22f6c27ca49b608803110300ab1366249cba01f2d8517713fb646e0dfea22db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11043991ed23d14fbaf832b14563a452603df2ad1adb6ee2aacbb7662a41591c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-19T20:19:25Z",
    "title_canon_sha256": "33e2f4ecdfeab7a2169da86249b32b4be9fcad10a7f32379439ac049c6ee1f63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05170",
    "kind": "arxiv",
    "version": 1
  }
}