Pith Number

pith:66Q5NOD3

pith:2019:66Q5NOD362S6XROT2MMPQ3ETT6

not attested not anchored not stored refs pending

Unbounded sequences of stable limit cycles in the delayed Duffing equation: an exact analysis

Bernold Fiedler, B. Shayak, Richard H. Rand, Si Mohamed Sah

arxiv:1908.06533 v1 · 2019-08-18 · math.DS · 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{66Q5NOD362S6XROT2MMPQ3ETT6}

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	2026-07-04T23:58:16.899792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a1d6b87bf6a5ebc5d3d318f86c939f807dcb4b6a1d7bd2cb7787e336450d33

Aliases

arxiv: 1908.06533 · arxiv_version: 1908.06533v1 · doi: 10.48550/arxiv.1908.06533 · pith_short_12: 66Q5NOD362S6 · pith_short_16: 66Q5NOD362S6XROT · pith_short_8: 66Q5NOD3

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/66Q5NOD362S6XROT2MMPQ3ETT6 \
  | 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: f7a1d6b87bf6a5ebc5d3d318f86c939f807dcb4b6a1d7bd2cb7787e336450d33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de18d265e83c9db426394a00eb3959442807d45df752c1a7b874c9606728416c",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-08-18T23:02:39Z",
    "title_canon_sha256": "15b90b27687fd0d81eb30d16edf03d00f85cdfa4b88414e929326fdd1eabce09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06533",
    "kind": "arxiv",
    "version": 1
  }
}