Pith Number

pith:OVIY5FTX

pith:2009:OVIY5FTXEQO4WXGGV3JYV62KX7

not attested not anchored not stored refs pending

Non-symmetric discrete Toda systems from quad-graphs

Raphael Boll, Yuri B. Suris

arxiv:0908.2822 v1 · 2009-08-19 · 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{OVIY5FTXEQO4WXGGV3JYV62KX7}

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	2026-05-18T04:35:55.252252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75518e9677241dcb5cc6aed38afb4abfe34ed10ebee5bc39f76e581bbf1fd474

Aliases

arxiv: 0908.2822 · arxiv_version: 0908.2822v1 · doi: 10.48550/arxiv.0908.2822 · pith_short_12: OVIY5FTXEQO4 · pith_short_16: OVIY5FTXEQO4WXGG · pith_short_8: OVIY5FTX

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/OVIY5FTXEQO4WXGGV3JYV62KX7 \
  | 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: 75518e9677241dcb5cc6aed38afb4abfe34ed10ebee5bc39f76e581bbf1fd474

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc7d08f7a8fa9db4725fbc11ba08fb5b2d6b488ea4d2d5392f2f963488e28ed3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-08-19T21:27:16Z",
    "title_canon_sha256": "3c11a17124abf546cf458bf5ab2c7507b5e271993c749db81230f5daa1220e82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2822",
    "kind": "arxiv",
    "version": 1
  }
}