Pith Number

pith:JAIM7TII

pith:2011:JAIM7TIIJXWISNW2372NDMJ5HD

not attested not anchored not stored refs pending

The Burgers equation and the Korteweg-de Vries equation with quadratic nonlinearity

Martin Kohlmann

arxiv:1107.3994 v2 · 2011-07-20 · 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{JAIM7TIIJXWISNW2372NDMJ5HD}

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	2026-05-18T03:58:05.125050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4810cfcd084dec8936dadff4d1b13d38d3cf1762789e8a4f1df71367a03d058d

Aliases

arxiv: 1107.3994 · arxiv_version: 1107.3994v2 · doi: 10.48550/arxiv.1107.3994 · pith_short_12: JAIM7TIIJXWI · pith_short_16: JAIM7TIIJXWISNW2 · pith_short_8: JAIM7TII

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/JAIM7TIIJXWISNW2372NDMJ5HD \
  | 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: 4810cfcd084dec8936dadff4d1b13d38d3cf1762789e8a4f1df71367a03d058d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2571b2c2a0721e11380211d3169f138917653e906cfc874eb7313cf5a2467f58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-07-20T14:57:54Z",
    "title_canon_sha256": "3b451629373d7601037862396008e77144b4d40b2a6d1f7fd703020ec2ca884e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3994",
    "kind": "arxiv",
    "version": 2
  }
}