Pith Number

pith:27MB2LOM

pith:2011:27MB2LOM7BKXARFLGFHRTTHVID

not attested not anchored not stored refs pending

Poincare Analyticity and the Complete Variational Equations

Alex Dragt, Dobrin Kaltchev

arxiv:1102.3394 v1 · 2011-02-16 · math-ph · math.CA · math.DS · math.MP · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27MB2LOM7BKXARFLGFHRTTHVID}

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	2026-05-18T02:03:10.347533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d81d2dccf8557044ab314f19ccf540c6d1fed8040b4495438cfa6aa1b7350c

Aliases

arxiv: 1102.3394 · arxiv_version: 1102.3394v1 · doi: 10.48550/arxiv.1102.3394 · pith_short_12: 27MB2LOM7BKX · pith_short_16: 27MB2LOM7BKXARFL · pith_short_8: 27MB2LOM

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/27MB2LOM7BKXARFLGFHRTTHVID \
  | 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: d7d81d2dccf8557044ab314f19ccf540c6d1fed8040b4495438cfa6aa1b7350c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eee4e97904a4cc7039e3db176955ccc46e8cf1fd9eac337ae56967f03f98face",
    "cross_cats_sorted": [
      "math.CA",
      "math.DS",
      "math.MP",
      "physics.acc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2011-02-16T18:34:25Z",
    "title_canon_sha256": "694d0eac803ca2b8c8c33ebf8fd8690c70abbc48cf54aed2bb0868f40e72899c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3394",
    "kind": "arxiv",
    "version": 1
  }
}