Pith Number

pith:VA6NGTFL

pith:2014:VA6NGTFLPSG7PWHU4KJ27I4VOV

not attested not anchored not stored refs pending

Unavoidable Multicoloured Families of Configurations

Linyuan Lu, Richard P. Anstee

arxiv:1409.4123 v2 · 2014-09-15 · 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{VA6NGTFLPSG7PWHU4KJ27I4VOV}

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	2026-05-18T02:41:40.933944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a83cd34cab7c8df7d8f4e293afa395757ab05873ef539951aa7e67dafb4339cd

Aliases

arxiv: 1409.4123 · arxiv_version: 1409.4123v2 · doi: 10.48550/arxiv.1409.4123 · pith_short_12: VA6NGTFLPSG7 · pith_short_16: VA6NGTFLPSG7PWHU · pith_short_8: VA6NGTFL

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/VA6NGTFLPSG7PWHU4KJ27I4VOV \
  | 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: a83cd34cab7c8df7d8f4e293afa395757ab05873ef539951aa7e67dafb4339cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b50f33bd5d8a3ef19af8de97567183e0d0b47bff175c3e20a7d245ac3797f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-15T00:08:38Z",
    "title_canon_sha256": "6e04374fa2292d0133b81122f76814f658b1c8c931efb6b77541293d4fb63461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4123",
    "kind": "arxiv",
    "version": 2
  }
}