Pith Number

pith:6Q5ZUOPD

pith:2011:6Q5ZUOPDUDL2GXYDFFKIJBO4XG

not attested not anchored not stored refs pending

Infinite words rich and almost rich in generalized palindromes

Edita Pelantov\'a, \v{S}t\v{e}p\'an Starosta

arxiv:1102.4023 v1 · 2011-02-19 · 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{6Q5ZUOPDUDL2GXYDFFKIJBO4XG}

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	2026-05-18T03:51:35.987536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f43b9a39e3a0d7a35f0329548485dcb99285a945f0abf335a01a2814f99d63c7

Aliases

arxiv: 1102.4023 · arxiv_version: 1102.4023v1 · doi: 10.48550/arxiv.1102.4023 · pith_short_12: 6Q5ZUOPDUDL2 · pith_short_16: 6Q5ZUOPDUDL2GXYD · pith_short_8: 6Q5ZUOPD

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/6Q5ZUOPDUDL2GXYDFFKIJBO4XG \
  | 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: f43b9a39e3a0d7a35f0329548485dcb99285a945f0abf335a01a2814f99d63c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c694ae7f0eafbbddb6f3e3e581ed8afa2bceeb3fe204da44a8f574f6360ab443",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-02-19T20:47:34Z",
    "title_canon_sha256": "7fc6ee3d996f8828df1e744510d85a72cb1171ab2a06927840ccaa28bc317dec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4023",
    "kind": "arxiv",
    "version": 1
  }
}