Pith Number

pith:2CGQALLU

pith:2012:2CGQALLUKVHOCU5RZB2PDFKQPK

not attested not anchored not stored refs pending

Convergence of Taylor Transfer Map for Duffing Equation

Alex Dragt, Dobrin Kaltchev

arxiv:1212.4515 v1 · 2012-12-18 · math-ph · math.DS · math.MP · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2CGQALLUKVHOCU5RZB2PDFKQPK}

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	2026-05-18T03:38:12.134422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d08d002d74554ee153b1c874f195507a90fa343da720a8750a1d8414c42bacb3

Aliases

arxiv: 1212.4515 · arxiv_version: 1212.4515v1 · doi: 10.48550/arxiv.1212.4515 · pith_short_12: 2CGQALLUKVHO · pith_short_16: 2CGQALLUKVHOCU5R · pith_short_8: 2CGQALLU

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/2CGQALLUKVHOCU5RZB2PDFKQPK \
  | 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: d08d002d74554ee153b1c874f195507a90fa343da720a8750a1d8414c42bacb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "361b9c511373ff692e76f8cfc7533fc9a43cbf528cf52446ad9b9af678dc0917",
    "cross_cats_sorted": [
      "math.DS",
      "math.MP",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-12-18T21:41:50Z",
    "title_canon_sha256": "3192ad6031b3efdaaf7fcb033da65ec70191f522ec1047233fb496487d6ae54c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4515",
    "kind": "arxiv",
    "version": 1
  }
}