Pith Number

pith:4QDJFKFU

pith:2013:4QDJFKFUVHXWWTNH6NGWE77U2M

not attested not anchored not stored refs pending

Integrable Maps which Preserve Functions with Symmetries

Allan P Fordy, Pavlos Kassotakis

arxiv:1301.1927 v3 · 2013-01-09 · math-ph · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QDJFKFUVHXWWTNH6NGWE77U2M}

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	2026-05-18T03:19:34.994456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e40692a8b4a9ef6b4da7f34d627ff4d31418e381a767408771c0749a691aec9f

Aliases

arxiv: 1301.1927 · arxiv_version: 1301.1927v3 · doi: 10.48550/arxiv.1301.1927 · pith_short_12: 4QDJFKFUVHXW · pith_short_16: 4QDJFKFUVHXWWTNH · pith_short_8: 4QDJFKFU

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/4QDJFKFUVHXWWTNH6NGWE77U2M \
  | 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: e40692a8b4a9ef6b4da7f34d627ff4d31418e381a767408771c0749a691aec9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c6bd092ab147a67bb4a627f1859ef28f5a250c58015c8d8b6ab3763c6df0018",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-01-09T17:02:05Z",
    "title_canon_sha256": "79b0edb54ec912de0f57579a0ef645665b50ff55f412fe8e39f1cb66c071aa7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1927",
    "kind": "arxiv",
    "version": 3
  }
}