Pith Number

pith:WDOOJO22

pith:2019:WDOOJO22AUK4V6GZGCBSSCHZTX

not attested not anchored not stored refs pending

The symmetry approach to integrability: recent advances

Rafael Hern\'andez Heredero, Vladimir Sokolov

arxiv:1904.01953 v1 · 2019-04-02 · 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{WDOOJO22AUK4V6GZGCBSSCHZTX}

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	2026-05-17T23:49:29.159011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0dce4bb5a0515caf8d930832908f99def314b40584fb8d7e3ce8438d9e5b75c

Aliases

arxiv: 1904.01953 · arxiv_version: 1904.01953v1 · doi: 10.48550/arxiv.1904.01953 · pith_short_12: WDOOJO22AUK4 · pith_short_16: WDOOJO22AUK4V6GZ · pith_short_8: WDOOJO22

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/WDOOJO22AUK4V6GZGCBSSCHZTX \
  | 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: b0dce4bb5a0515caf8d930832908f99def314b40584fb8d7e3ce8438d9e5b75c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b71ef07971df3f8015d6b09c16f2e014758b256671392cee9e98436c2367d4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2019-04-02T15:54:43Z",
    "title_canon_sha256": "74e404ab042e163adf86ad7236c167d950145ba52ce274828a86aae3b49f79ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01953",
    "kind": "arxiv",
    "version": 1
  }
}