Pith Number

pith:7FG6MQET

pith:2016:7FG6MQETBXF4EY5Y6BCHMXSG46

not attested not anchored not stored refs pending

Large KAM tori for perturbations of the dNLS equation

Massimiliano Berti, Riccardo Montalto, Thomas Kappeler

arxiv:1603.09252 v1 · 2016-03-30 · 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{7FG6MQETBXF4EY5Y6BCHMXSG46}

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	2026-05-18T01:18:01.038955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f94de640930dcbc263b8f044765e46e7a05b0763cd0df70cf3aec637738b503c

Aliases

arxiv: 1603.09252 · arxiv_version: 1603.09252v1 · doi: 10.48550/arxiv.1603.09252 · pith_short_12: 7FG6MQETBXF4 · pith_short_16: 7FG6MQETBXF4EY5Y · pith_short_8: 7FG6MQET

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/7FG6MQETBXF4EY5Y6BCHMXSG46 \
  | 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: f94de640930dcbc263b8f044765e46e7a05b0763cd0df70cf3aec637738b503c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80590623038be7d6bf348e4acb2f0e27ba083320447c7a2b973853bfda1a4c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-03-30T15:43:43Z",
    "title_canon_sha256": "30ebdb37e059828f746947dda18112423db4657ec26498bc8a018e57d587b6b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.09252",
    "kind": "arxiv",
    "version": 1
  }
}