Pith Number

pith:YMT7ZYDN

pith:2011:YMT7ZYDNN6C3ZC52AFM6EBZP3I

not attested not anchored not stored refs pending

Daisies and Other Turan Problems

Bela Bollobas, Claudia Malvenuto, Imre Leader

arxiv:1105.1553 v1 · 2011-05-08 · 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{YMT7ZYDNN6C3ZC52AFM6EBZP3I}

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	2026-05-18T04:22:39.203067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c327fce06d6f85bc8bba0159e2072fda26363c60df887b9d2a67a79f6e29f824

Aliases

arxiv: 1105.1553 · arxiv_version: 1105.1553v1 · doi: 10.48550/arxiv.1105.1553 · pith_short_12: YMT7ZYDNN6C3 · pith_short_16: YMT7ZYDNN6C3ZC52 · pith_short_8: YMT7ZYDN

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/YMT7ZYDNN6C3ZC52AFM6EBZP3I \
  | 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: c327fce06d6f85bc8bba0159e2072fda26363c60df887b9d2a67a79f6e29f824

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56ab3b3b41e15a9d38a3f06dc4d72dea06025d003005528214962dcf2754f4d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-05-08T20:47:21Z",
    "title_canon_sha256": "d1fcc761794d4cdc3f88c075c3891449b9925bdb28b2f2a9a4bab473f4e632fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1553",
    "kind": "arxiv",
    "version": 1
  }
}