Pith Number

pith:SDPDGQEU

pith:2018:SDPDGQEUDZQBOQ4XQD7TE72IPK

not attested not anchored not stored refs pending

Multiple solutions for periodic perturbations of a delayed autonomous system near an equilibrium

Gonzalo Robledo, Mariel P. Kuna, Pablo Amster

arxiv:1804.05616 v1 · 2018-04-16 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDPDGQEUDZQBOQ4XQD7TE72IPK}

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	2026-05-18T00:18:27.744344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90de3340941e6017439780ff327f487a9fe6afc9dfa9b9a3a09f2e6287009aa4

Aliases

arxiv: 1804.05616 · arxiv_version: 1804.05616v1 · doi: 10.48550/arxiv.1804.05616 · pith_short_12: SDPDGQEUDZQB · pith_short_16: SDPDGQEUDZQBOQ4X · pith_short_8: SDPDGQEU

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/SDPDGQEUDZQBOQ4XQD7TE72IPK \
  | 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: 90de3340941e6017439780ff327f487a9fe6afc9dfa9b9a3a09f2e6287009aa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2b9c1d91824173ac6b7e194810a7d3e2578cc7c4e8671a22e0c92c0a7e502b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-04-16T11:38:20Z",
    "title_canon_sha256": "c0146ed129a764af21def6a3eda4487991a6aaecbe2f70040f535fc08330ffc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05616",
    "kind": "arxiv",
    "version": 1
  }
}