Pith Number

pith:6XAOPTWH

pith:2015:6XAOPTWHYF3JM3C4BICLIBV6ID

not attested not anchored not stored refs pending

Unique positive solution for an alternative discrete Painlev\'e I equation

Ana F. Loureiro, Peter A. Clarkson, Walter Van Assche

arxiv:1508.04916 v2 · 2015-08-20 · nlin.SI · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6XAOPTWHYF3JM3C4BICLIBV6ID}

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	2026-05-18T00:31:22.797516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5c0e7cec7c176966c5c0a04b406be40d509742aba554710dba13b8bafc4eb81

Aliases

arxiv: 1508.04916 · arxiv_version: 1508.04916v2 · doi: 10.48550/arxiv.1508.04916 · pith_short_12: 6XAOPTWHYF3J · pith_short_16: 6XAOPTWHYF3JM3C4 · pith_short_8: 6XAOPTWH

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/6XAOPTWHYF3JM3C4BICLIBV6ID \
  | 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: f5c0e7cec7c176966c5c0a04b406be40d509742aba554710dba13b8bafc4eb81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e77613f439b813c1d05a192acc44d35af140bdb904b13e7557e141f5062c8d41",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2015-08-20T08:19:18Z",
    "title_canon_sha256": "f521d2f0e473ee4b6fc732740704ea3547457f42e32b9b422ba82374ee909590"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04916",
    "kind": "arxiv",
    "version": 2
  }
}