Pith Number

pith:D32XBORQ

pith:2017:D32XBORQ3PUJJDB47AERD3P6OS

not attested not anchored not stored refs pending

B\"acklund Transformation and Quasi-Integrable Deformation of Mixed Fermi-Pasta-Ulam and Frenkel-Kontorova Models

A Ghose Choudhury, Kumar Abhinav, Partha Guha

arxiv:1701.01929 v2 · 2017-01-08 · math-ph · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D32XBORQ3PUJJDB47AERD3P6OS}

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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	2026-05-18T00:20:17.475267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ef570ba30dbe8948c3cf80911edfe748b86c8bfda4f45629eea8930da6cff84

Aliases

arxiv: 1701.01929 · arxiv_version: 1701.01929v2 · doi: 10.48550/arxiv.1701.01929 · pith_short_12: D32XBORQ3PUJ · pith_short_16: D32XBORQ3PUJJDB4 · pith_short_8: D32XBORQ

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/D32XBORQ3PUJJDB47AERD3P6OS \
  | 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: 1ef570ba30dbe8948c3cf80911edfe748b86c8bfda4f45629eea8930da6cff84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b585154ffa587f5d476fdc8e392a458f8b7c38c17b7498762409fed48340946",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-01-08T09:25:02Z",
    "title_canon_sha256": "a3b4c71b2561645e2e0191295ac448dbed42c4c9b909ed7f3b2230c48b53ad1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01929",
    "kind": "arxiv",
    "version": 2
  }
}