Pith Number

pith:CPLWMKCO

pith:2013:CPLWMKCO5JNJRKUX7SO4QTO2NY

not attested not anchored not stored refs pending

Hyers-Ulam stability of certain singular linear differential equations

Douglas R. Anderson, Jenna M. Otto

arxiv:1307.3287 v2 · 2013-07-11 · 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{CPLWMKCO5JNJRKUX7SO4QTO2NY}

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	2026-05-18T03:17:02.632990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d766284eea5a98aa97fc9dc84dda6e04570ba04d797daa037c1d47218f97ce

Aliases

arxiv: 1307.3287 · arxiv_version: 1307.3287v2 · doi: 10.48550/arxiv.1307.3287 · pith_short_12: CPLWMKCO5JNJ · pith_short_16: CPLWMKCO5JNJRKUX · pith_short_8: CPLWMKCO

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/CPLWMKCO5JNJRKUX7SO4QTO2NY \
  | 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: 13d766284eea5a98aa97fc9dc84dda6e04570ba04d797daa037c1d47218f97ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbb4259270e82c94b724f9148cb3c255e009ad00201fb5f38782002e79b252c1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-07-11T22:29:30Z",
    "title_canon_sha256": "73f52aab441971f79e2945c087aff83dbd69412cfcb7f914a8c9906d3566403d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3287",
    "kind": "arxiv",
    "version": 2
  }
}