Pith Number

pith:H4I64YZC

pith:2013:H4I64YZCFBI3PFFKRIB2XYUZAW

not attested not anchored not stored refs pending

On the Relation of Delay Equations to First-Order Hyperbolic Partial Differential Equations

Iasson Karafyllis, Miroslav Krstic

arxiv:1302.1128 v1 · 2013-02-05 · math.OC · cs.SY · math.AP · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4I64YZCFBI3PFFKRIB2XYUZAW}

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	2026-05-17T23:53:17.937701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f11ee63222851b794aa8a03abe29905bad50e3e6dc0cbe896607dfdaa5b7f18

Aliases

arxiv: 1302.1128 · arxiv_version: 1302.1128v1 · doi: 10.48550/arxiv.1302.1128 · pith_short_12: H4I64YZCFBI3 · pith_short_16: H4I64YZCFBI3PFFK · pith_short_8: H4I64YZC

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/H4I64YZCFBI3PFFKRIB2XYUZAW \
  | 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: 3f11ee63222851b794aa8a03abe29905bad50e3e6dc0cbe896607dfdaa5b7f18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b26a99855e2517d817f068425fcd1d88c1c271d16703b026dba4fd70e39710a",
    "cross_cats_sorted": [
      "cs.SY",
      "math.AP",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-02-05T17:35:15Z",
    "title_canon_sha256": "db8d423271c1c3ecd4e844d205433f4be2cd2a459a574627e506c49fffd01010"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1128",
    "kind": "arxiv",
    "version": 1
  }
}