Pith Number

pith:5VFRWNKE

pith:2012:5VFRWNKEJGTWFSTBGWTBC4PBUI

not attested not anchored not stored refs pending

On efficient constructions of short lists containing mostly Ramsey graphs

Marius Zimand

arxiv:1210.4408 v1 · 2012-10-16 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5VFRWNKEJGTWFSTBGWTBC4PBUI}

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	2026-05-18T03:43:06.061281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed4b1b354449a762ca6135a61171e1a233a145f91a549b3949c7fce786e9ac95

Aliases

arxiv: 1210.4408 · arxiv_version: 1210.4408v1 · doi: 10.48550/arxiv.1210.4408 · pith_short_12: 5VFRWNKEJGTW · pith_short_16: 5VFRWNKEJGTWFSTB · pith_short_8: 5VFRWNKE

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/5VFRWNKEJGTWFSTBGWTBC4PBUI \
  | 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: ed4b1b354449a762ca6135a61171e1a233a145f91a549b3949c7fce786e9ac95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92b38ca65d9c796c65b1049c3ae58c6140776d1bf93abcc4bd3ab69516149848",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-10-16T13:48:53Z",
    "title_canon_sha256": "a5f3e5d18e21058cb929d73b56348cf07040e2d20b192bb4b986fcc0ab16c927"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4408",
    "kind": "arxiv",
    "version": 1
  }
}