Pith Number

pith:SRIW47JZ

pith:2011:SRIW47JZO7GTFJMUDI7ZZSEN7C

not attested not anchored not stored refs pending

A new approach to cross-bifix-free sets

Elisa Pergola, Renzo Pinzani, Stefano Bilotta

arxiv:1112.3168 v1 · 2011-12-14 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRIW47JZO7GTFJMUDI7ZZSEN7C}

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	2026-05-18T04:06:19.952509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94516e7d3977cd32a5941a3f9cc88df8ab4b3724bbec46ae3e606853b7a675f7

Aliases

arxiv: 1112.3168 · arxiv_version: 1112.3168v1 · doi: 10.48550/arxiv.1112.3168 · pith_short_12: SRIW47JZO7GT · pith_short_16: SRIW47JZO7GTFJMU · pith_short_8: SRIW47JZ

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/SRIW47JZO7GTFJMUDI7ZZSEN7C \
  | 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: 94516e7d3977cd32a5941a3f9cc88df8ab4b3724bbec46ae3e606853b7a675f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2ac6a8e0648a76239d07ed95df768bee29aea6eda0a0825435a520297ca9193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-12-14T11:13:08Z",
    "title_canon_sha256": "41d4920357661a4bd664e7d87416d8a4b5b765621c89828f26c8839f88f6ddb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3168",
    "kind": "arxiv",
    "version": 1
  }
}