Pith Number

pith:SO26MJCY

pith:2009:SO26MJCYO3TKN5LJUYUIX3QYQ2

not attested not anchored not stored refs pending

On the periodic "good" Boussinesq equation

Luiz Gustavo Farah, Marcia Scialom

arxiv:0906.3915 v2 · 2009-06-22 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SO26MJCYO3TKN5LJUYUIX3QYQ2}

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	2026-05-18T04:40:09.534139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93b5e6245876e6a6f569a6288bee1886929f7ea5e413baac1665a9dbf716c025

Aliases

arxiv: 0906.3915 · arxiv_version: 0906.3915v2 · doi: 10.48550/arxiv.0906.3915 · pith_short_12: SO26MJCYO3TK · pith_short_16: SO26MJCYO3TKN5LJ · pith_short_8: SO26MJCY

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/SO26MJCYO3TKN5LJUYUIX3QYQ2 \
  | 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: 93b5e6245876e6a6f569a6288bee1886929f7ea5e413baac1665a9dbf716c025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1784db5c57b8902925fdc9ec5e0ed9120dff67ef35844fd507e0cbf0e1bd73c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-06-22T03:50:13Z",
    "title_canon_sha256": "1caa40d1f50b5d0a556aaf20f2fc91bb14289d2e6d81a6c59d97fe15ec28c1bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3915",
    "kind": "arxiv",
    "version": 2
  }
}