Pith Number

pith:BGCM4YMQ

pith:2018:BGCM4YMQNBOI65SQK3NTFBMQWQ

not attested not anchored not stored refs pending

The Toda$_2$ chain

K. K. Kozlowski, O. Babelon, V. Pasquier

arxiv:1803.05813 v1 · 2018-03-15 · 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{BGCM4YMQNBOI65SQK3NTFBMQWQ}

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	2026-05-18T00:09:26.648081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0984ce6190685c8f765056db328590b40fe836d5a55faca67bc2a61bccda17bb

Aliases

arxiv: 1803.05813 · arxiv_version: 1803.05813v1 · doi: 10.48550/arxiv.1803.05813 · pith_short_12: BGCM4YMQNBOI · pith_short_16: BGCM4YMQNBOI65SQ · pith_short_8: BGCM4YMQ

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/BGCM4YMQNBOI65SQK3NTFBMQWQ \
  | 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: 0984ce6190685c8f765056db328590b40fe836d5a55faca67bc2a61bccda17bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7528298edca7150fdfddbfacdaa985ae39e185b64be2c0388d90f88adb7871",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-03-15T15:37:14Z",
    "title_canon_sha256": "916c1f903f1a3d175d18cbd0f27e4ae0bbeef94d827f6e0e474dc1cec106246b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05813",
    "kind": "arxiv",
    "version": 1
  }
}