Pith Number

pith:3AZANXWA

pith:2015:3AZANXWAN2EAUOWIV4AJ5EKNQB

not attested not anchored not stored refs pending

Local stability analysis of differential equations with state-dependent delay

Eugen Stumpf

arxiv:1502.03142 v1 · 2015-02-10 · 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{3AZANXWAN2EAUOWIV4AJ5EKNQB}

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	2026-05-18T02:27:20.453686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d83206dec06e880a3ac8af009e914d8054c4ef0329ba616d11ea5ccd3100ecee

Aliases

arxiv: 1502.03142 · arxiv_version: 1502.03142v1 · doi: 10.48550/arxiv.1502.03142 · pith_short_12: 3AZANXWAN2EA · pith_short_16: 3AZANXWAN2EAUOWI · pith_short_8: 3AZANXWA

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/3AZANXWAN2EAUOWIV4AJ5EKNQB \
  | 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: d83206dec06e880a3ac8af009e914d8054c4ef0329ba616d11ea5ccd3100ecee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf480a8b8248e0979e5f82e40cc1d5aa59e0a256158ea6f1d62e390343a1b274",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-02-10T22:33:40Z",
    "title_canon_sha256": "939347a4ac48b75dd68838e24c7f445d1b5d745caf1ccdcf667f6b0c8f0c9765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03142",
    "kind": "arxiv",
    "version": 1
  }
}