Pith Number

pith:G536H7ST

pith:2011:G536H7STECAHIKX4OVOVMNYIQQ

not attested not anchored not stored refs pending

A generalized palindromization map in free monoids

Aldo de Luca, Alessandro De Luca

arxiv:1111.1823 v4 · 2011-11-08 · cs.DM · cs.FL · 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{G536H7STECAHIKX4OVOVMNYIQQ}

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	2026-05-18T03:34:46.201924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3777e3fe532080742afc755d56370884330ec2b613cdbeebedbc24b354a2a895

Aliases

arxiv: 1111.1823 · arxiv_version: 1111.1823v4 · doi: 10.48550/arxiv.1111.1823 · pith_short_12: G536H7STECAH · pith_short_16: G536H7STECAHIKX4 · pith_short_8: G536H7ST

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/G536H7STECAHIKX4OVOVMNYIQQ \
  | 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: 3777e3fe532080742afc755d56370884330ec2b613cdbeebedbc24b354a2a895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e77e3cb33e5d786a4b1fa36f09c55d672e1d9611cf403b7163d160d1cb1aa4e6",
    "cross_cats_sorted": [
      "cs.FL",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-11-08T08:26:50Z",
    "title_canon_sha256": "c78a9c72639513fe4c42f471203b11f1271d07cdc9af9c9ae6dd3d5115bd3247"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1823",
    "kind": "arxiv",
    "version": 4
  }
}