Pith Number

pith:P4RGGOJG

pith:2015:P4RGGOJGVJIASVDK6HTRNN2IAO

not attested not anchored not stored refs pending

KAM for autonomous quasi-linear perturbations of mKdV

Massimiliano Berti, Pietro Baldi, Riccardo Montalto

arxiv:1508.02007 v1 · 2015-08-09 · 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{P4RGGOJGVJIASVDK6HTRNN2IAO}

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	2026-05-18T00:54:41.505424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f22633926aa5009546af1e716b74803824a63b03ef9f0e89e6b40671863a850

Aliases

arxiv: 1508.02007 · arxiv_version: 1508.02007v1 · doi: 10.48550/arxiv.1508.02007 · pith_short_12: P4RGGOJGVJIA · pith_short_16: P4RGGOJGVJIASVDK · pith_short_8: P4RGGOJG

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/P4RGGOJGVJIASVDK6HTRNN2IAO \
  | 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: 7f22633926aa5009546af1e716b74803824a63b03ef9f0e89e6b40671863a850

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "397db7477ff259b1b49f830f8c6c6d36ff1e4a354a17b2fae8834aeaad531590",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-08-09T10:02:49Z",
    "title_canon_sha256": "378c0599f401cb6f5d78708c02aab9f9bfea7ed8018923057f11eadc14dd6a58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02007",
    "kind": "arxiv",
    "version": 1
  }
}