Pith Number

pith:5RBKHSQL

pith:2017:5RBKHSQLP5S2HEJPW6LQ664X6Q

not attested not anchored not stored refs pending

On the Nonexistence of Some Generalized Folkman Numbers

Meilian Liang, Stanis{\l}aw Radziszowski, Xiaodong Xu

arxiv:1705.06268 v2 · 2017-05-17 · 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{5RBKHSQLP5S2HEJPW6LQ664X6Q}

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	2026-05-18T00:12:48.850632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec42a3ca0b7f65a3912fb7970f7b97f4198b483ec7ff947d10023df6e359f77a

Aliases

arxiv: 1705.06268 · arxiv_version: 1705.06268v2 · doi: 10.48550/arxiv.1705.06268 · pith_short_12: 5RBKHSQLP5S2 · pith_short_16: 5RBKHSQLP5S2HEJP · pith_short_8: 5RBKHSQL

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/5RBKHSQLP5S2HEJPW6LQ664X6Q \
  | 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: ec42a3ca0b7f65a3912fb7970f7b97f4198b483ec7ff947d10023df6e359f77a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56039282ca1892ab23af1b46df1b4d6b43c982ef12adef55cd0a8d83d0875206",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-17T17:27:05Z",
    "title_canon_sha256": "f9caab8e2c1f0e00066d87b055c5dbc63b9fccec38ff75d98a77b90728983047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06268",
    "kind": "arxiv",
    "version": 2
  }
}