Pith Number

pith:6ZL4TNIP

pith:1996:6ZL4TNIPTNKT7SHAOPTT5CHNPB

not attested not anchored not stored refs pending

Classification of Integrable Evolution Equations of the Form $u_t=u_{xxx}+f(t,x,u,u_x,u_{xx})$

Ayse Humeyra Bilge

arxiv:solv-int/9605004 v1 · 1996-05-17 · solv-int · 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{6ZL4TNIPTNKT7SHAOPTT5CHNPB}

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	2026-07-04T15:09:13.191300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f657c9b50f9b553fc8e073e73e88ed787a3fef4093e1c70265fda38fe13e6036

Aliases

arxiv: solv-int/9605004 · arxiv_version: solv-int/9605004v1 · doi: 10.48550/arxiv.solv-int/9605004 · pith_short_12: 6ZL4TNIPTNKT · pith_short_16: 6ZL4TNIPTNKT7SHA · pith_short_8: 6ZL4TNIP

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/6ZL4TNIPTNKT7SHAOPTT5CHNPB \
  | 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: f657c9b50f9b553fc8e073e73e88ed787a3fef4093e1c70265fda38fe13e6036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b8228355a68e257247f844cf5fa0abd23cd2f23c3a5a36cc0284670d3371f6f",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "solv-int",
    "submitted_at": "1996-05-17T11:59:11Z",
    "title_canon_sha256": "d717084d5fe82495c3d21c7383370de424ed2e1e5679b4a8cba0ff5105d61872"
  },
  "schema_version": "1.0",
  "source": {
    "id": "solv-int/9605004",
    "kind": "arxiv",
    "version": 1
  }
}