Pith Number

pith:KWD2R5TE

pith:2014:KWD2R5TE2BCNIUTHKYD6NN3YAU

not attested not anchored not stored refs pending

KAM for autonomous quasi-linear perturbations of KdV

Massimiliano Berti, Pietro Baldi, Riccardo Montalto

arxiv:1404.3125 v1 · 2014-04-11 · 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{KWD2R5TE2BCNIUTHKYD6NN3YAU}

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	2026-05-18T02:54:22.143429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5587a8f664d044d452675607e6b77805034a0ebdd8d418ca31c46817f638e563

Aliases

arxiv: 1404.3125 · arxiv_version: 1404.3125v1 · doi: 10.48550/arxiv.1404.3125 · pith_short_12: KWD2R5TE2BCN · pith_short_16: KWD2R5TE2BCNIUTH · pith_short_8: KWD2R5TE

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/KWD2R5TE2BCNIUTHKYD6NN3YAU \
  | 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: 5587a8f664d044d452675607e6b77805034a0ebdd8d418ca31c46817f638e563

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67096e3ff154bcba4a6961ee7ac794ce351031b9aac7d3507523ebdfd9d20bcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-04-11T14:46:43Z",
    "title_canon_sha256": "646013fc5810ee808a9440ad6a2b728e32e187523a9d3422940d0be3863ec0b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3125",
    "kind": "arxiv",
    "version": 1
  }
}