Pith Number

pith:YU2QC4YZ

pith:2015:YU2QC4YZJB7HMTDDJXXPNLS2AK

not attested not anchored not stored refs pending

The Toda lattice, old and new

Carlos Tomei

arxiv:1508.03229 v1 · 2015-08-10 · math.DS · math-ph · math.MP · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YU2QC4YZJB7HMTDDJXXPNLS2AK}

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	2026-05-18T01:35:21.372830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c535017319487e764c634deef6ae5a0289e94e6d2849518d5c0ec3fae1ab0082

Aliases

arxiv: 1508.03229 · arxiv_version: 1508.03229v1 · doi: 10.48550/arxiv.1508.03229 · pith_short_12: YU2QC4YZJB7H · pith_short_16: YU2QC4YZJB7HMTDD · pith_short_8: YU2QC4YZ

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/YU2QC4YZJB7HMTDDJXXPNLS2AK \
  | 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: c535017319487e764c634deef6ae5a0289e94e6d2849518d5c0ec3fae1ab0082

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ac14e99e9e1a74526a1b9af904cb3b25eaaff95828614789d88f1e2ff1b18f7",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-08-10T12:18:20Z",
    "title_canon_sha256": "53229f8996460a59b38b947651bbce16ef0064dc37946d872776f2dbb325d58f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03229",
    "kind": "arxiv",
    "version": 1
  }
}