Pith Number

pith:2FADQFBI

pith:2019:2FADQFBIXXU5J6NQSIGZCGVEJA

not attested not anchored not stored refs pending

Surrogate model approach for investigating the stability of a friction-induced oscillator of Duffing's type

Amelie Fau, Jan N. Fuhg

arxiv:1907.02208 v1 · 2019-07-02 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FADQFBIXXU5J6NQSIGZCGVEJA}

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	2026-05-17T23:41:29.408779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d140381428bde9d4f9b0920d911aa4482400afeb524cc7c912c236972afaae4c

Aliases

arxiv: 1907.02208 · arxiv_version: 1907.02208v1 · doi: 10.48550/arxiv.1907.02208 · pith_short_12: 2FADQFBIXXU5 · pith_short_16: 2FADQFBIXXU5J6NQ · pith_short_8: 2FADQFBI

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/2FADQFBIXXU5J6NQSIGZCGVEJA \
  | 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: d140381428bde9d4f9b0920d911aa4482400afeb524cc7c912c236972afaae4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9ae8a42d92dc6d40c7954b7ef46f101da6c871c146eb8adaeb0e71d4235b179",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-07-02T16:09:28Z",
    "title_canon_sha256": "fab7a9425e1abb272fff06f415b97a25038d828c840a1f0c5376feaae32edaf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02208",
    "kind": "arxiv",
    "version": 1
  }
}