Pith Number

pith:J3HU56QZ

pith:2014:J3HU56QZJ25JUEEYI4ZGJBVGSP

not attested not anchored not stored refs pending

Van der Pol and the history of relaxation oscillations: toward the emergence of a concept

Christophe Letellier (CORIA), Jean-Marc Ginoux (PROTEE)

arxiv:1408.4890 v1 · 2014-08-21 · physics.hist-ph · math.DS · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3HU56QZJ25JUEEYI4ZGJBVGSP}

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	2026-05-18T02:44:41.420117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ecf4efa194eba9a109847326486a693e53212fb5fa09f11ff43e9a7eccc5abc

Aliases

arxiv: 1408.4890 · arxiv_version: 1408.4890v1 · doi: 10.48550/arxiv.1408.4890 · pith_short_12: J3HU56QZJ25J · pith_short_16: J3HU56QZJ25JUEEY · pith_short_8: J3HU56QZ

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/J3HU56QZJ25JUEEYI4ZGJBVGSP \
  | 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: 4ecf4efa194eba9a109847326486a693e53212fb5fa09f11ff43e9a7eccc5abc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fbde29a8ffcf1f2a47251dd3eaf8503fadbec9314d6182d555034e7fdbcd6ef",
    "cross_cats_sorted": [
      "math.DS",
      "math.HO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-08-21T06:04:08Z",
    "title_canon_sha256": "13f82a84dca7895f33928077e747114a174c63f6f79cbf8472bf9379e7b973ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4890",
    "kind": "arxiv",
    "version": 1
  }
}