Pith Number

pith:7QRIRC5X

pith:2019:7QRIRC5XDVYQOQ55BQON6QCP47

not attested not anchored not stored refs pending

Morphisms generating antipalindromic words

Edita Pelantov\'a, Petr Ambro\v{z}, Zuzana Mas\'akov\'a

arxiv:1906.06174 v1 · 2019-06-14 · 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{7QRIRC5XDVYQOQ55BQON6QCP47}

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	2026-05-17T23:43:19.477353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc22888bb71d710743bd0c1cdf404fe7f063c630158be57055c5cebb9f570628

Aliases

arxiv: 1906.06174 · arxiv_version: 1906.06174v1 · doi: 10.48550/arxiv.1906.06174 · pith_short_12: 7QRIRC5XDVYQ · pith_short_16: 7QRIRC5XDVYQOQ55 · pith_short_8: 7QRIRC5X

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/7QRIRC5XDVYQOQ55BQON6QCP47 \
  | 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: fc22888bb71d710743bd0c1cdf404fe7f063c630158be57055c5cebb9f570628

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4038008dfec5b90e8b606d8e31824e3781b9b91a220b691dfe138cf4764ba1e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-06-14T12:48:06Z",
    "title_canon_sha256": "e901aaf8892166d9368215c6ebc70afd121627a05d27a2414377f58666c0686c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06174",
    "kind": "arxiv",
    "version": 1
  }
}