Pith Number

pith:2KVQ6GTE

pith:2009:2KVQ6GTEUP6HF3AHOYDNYGDGQJ

not attested not anchored not stored refs pending

Global rough solutions to the critical generalized KdV equation

Luiz Gustavo Farah

arxiv:0908.0344 v2 · 2009-08-03 · 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{2KVQ6GTEUP6HF3AHOYDNYGDGQJ}

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	2026-05-18T04:40:09.517237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ab0f1a64a3fc72ec077606dc18668244228b1a58cd85e979bf519ae87fb55d

Aliases

arxiv: 0908.0344 · arxiv_version: 0908.0344v2 · doi: 10.48550/arxiv.0908.0344 · pith_short_12: 2KVQ6GTEUP6H · pith_short_16: 2KVQ6GTEUP6HF3AH · pith_short_8: 2KVQ6GTE

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/2KVQ6GTEUP6HF3AHOYDNYGDGQJ \
  | 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: d2ab0f1a64a3fc72ec077606dc18668244228b1a58cd85e979bf519ae87fb55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65d4406e7a71099e0d45d099fb9f7ed9f94cf28973c92358388f079086e990f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-08-03T20:55:12Z",
    "title_canon_sha256": "db8226bb22a4f7a5eef2b35c3b997717cec7e7d0db15871adbcd9ee4247c0c8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0344",
    "kind": "arxiv",
    "version": 2
  }
}