Pith Number

pith:FERIEQJ3

pith:2012:FERIEQJ32VDNFPJOBOIP5O6VJH

not attested not anchored not stored refs pending

Optimal epsilon-biased sets with just a little randomness

Alexander Russell, Cristopher Moore

arxiv:1205.6218 v3 · 2012-05-28 · cs.CC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FERIEQJ32VDNFPJOBOIP5O6VJH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:27:42.841693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

292282413bd546d2bd2e0b90febbd549d8e31076a388a7978827504c0cd9d8d9

Aliases

arxiv: 1205.6218 · arxiv_version: 1205.6218v3 · doi: 10.48550/arxiv.1205.6218 · pith_short_12: FERIEQJ32VDN · pith_short_16: FERIEQJ32VDNFPJO · pith_short_8: FERIEQJ3

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/FERIEQJ32VDNFPJOBOIP5O6VJH \
  | 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: 292282413bd546d2bd2e0b90febbd549d8e31076a388a7978827504c0cd9d8d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9a96157eca34d3a71481f3df244af6cfd460839a23388d1691f23bf70384ab3",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-05-28T21:02:50Z",
    "title_canon_sha256": "757ac129b5e878adee256a60284f69e9542867d892b1b181ef015522964130ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6218",
    "kind": "arxiv",
    "version": 3
  }
}