Pith Number

pith:W56GJEGR

pith:2013:W56GJEGR7GQH6TW3GF7LPSUAS4

not attested not anchored not stored refs pending

A Lax pair for the complete QRT mapping

N. Joshi, P. Howes, P. Kassotakis

arxiv:1304.4351 v2 · 2013-04-16 · 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{W56GJEGR7GQH6TW3GF7LPSUAS4}

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	2026-05-18T03:26:33.368060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b77c6490d1f9a07f4edb317eb7ca80972094a45dd323cc18df26401ffbc0ce45

Aliases

arxiv: 1304.4351 · arxiv_version: 1304.4351v2 · doi: 10.48550/arxiv.1304.4351 · pith_short_12: W56GJEGR7GQH · pith_short_16: W56GJEGR7GQH6TW3 · pith_short_8: W56GJEGR

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/W56GJEGR7GQH6TW3GF7LPSUAS4 \
  | 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: b77c6490d1f9a07f4edb317eb7ca80972094a45dd323cc18df26401ffbc0ce45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b340f7fa895e969990b64317027583948a0127941af5288e8edb5246dc265c59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-04-16T07:38:42Z",
    "title_canon_sha256": "58429396ac287fd5ae3d8d1862c31b7f900ea660dc6d24b14c619b49a7457351"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4351",
    "kind": "arxiv",
    "version": 2
  }
}