Pith Number

pith:GDNUJSYS

pith:2018:GDNUJSYS5PZPYHQKYS7HILNM27

not attested not anchored not stored refs pending

Approximate Conservation Laws in the KdV Equation

Henrik Kalisch, Samer Israwi

arxiv:1808.10662 v2 · 2018-08-31 · math-ph · math.AP · math.MP · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GDNUJSYS5PZPYHQKYS7HILNM27}

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	2026-05-17T23:50:24.149724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30db44cb12ebf2fc1e0ac4be742dacd7d9ee3a2ab5522ace1929e6067ede4f7b

Aliases

arxiv: 1808.10662 · arxiv_version: 1808.10662v2 · doi: 10.48550/arxiv.1808.10662 · pith_short_12: GDNUJSYS5PZP · pith_short_16: GDNUJSYS5PZPYHQK · pith_short_8: GDNUJSYS

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/GDNUJSYS5PZPYHQKYS7HILNM27 \
  | 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: 30db44cb12ebf2fc1e0ac4be742dacd7d9ee3a2ab5522ace1929e6067ede4f7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceaa2ca1fcd5412502a83d51a978ff37ed1c3d98e9096fd206987e5c48b7412c",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-08-31T10:19:48Z",
    "title_canon_sha256": "3e336ae1be85062cb4a1036220fbd872a43f66ab6e82c8615e47b42f8d48c0a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10662",
    "kind": "arxiv",
    "version": 2
  }
}