Pith Number

pith:J4CP6EWB

pith:2009:J4CP6EWBZQRTDCAKI2ETDKX4WY

not attested not anchored not stored refs pending

On the Cauchy Problem for the Korteweg-de Vries Equation with Steplike Finite-Gap Initial Data II. Perturbations with Finite Moments

Gerald Teschl, Iryna Egorova

arxiv:0909.1576 v2 · 2009-09-08 · nlin.SI · 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{J4CP6EWBZQRTDCAKI2ETDKX4WY}

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	2026-05-18T03:58:51.916518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f04ff12c1cc2331880a468931aafcb6015d09e16a2dfd33d50e21c0590cf80c

Aliases

arxiv: 0909.1576 · arxiv_version: 0909.1576v2 · doi: 10.48550/arxiv.0909.1576 · pith_short_12: J4CP6EWBZQRT · pith_short_16: J4CP6EWBZQRTDCAK · pith_short_8: J4CP6EWB

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/J4CP6EWBZQRTDCAKI2ETDKX4WY \
  | 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: 4f04ff12c1cc2331880a468931aafcb6015d09e16a2dfd33d50e21c0590cf80c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8de07f4c27db9c709db361da9b8d6d3e0c786a2b4006bb647a9dcfc753660a7c",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-09-08T21:03:36Z",
    "title_canon_sha256": "9a87d6445dcd1e4f773ab9a62c57e10a879682a37122bdee47f069a41ee34575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1576",
    "kind": "arxiv",
    "version": 2
  }
}