Pith Number

pith:RTEGPXIX

pith:2026:RTEGPXIXIC2A2TWR75GGM66CNZ

not attested not anchored not stored refs pending

A Stability Testing Algorithm for Incommensurate Fractional Differential Equation Systems

Kai Diethelm, Safoura Hashemishahraki

arxiv:2603.02269 v2 · 2026-02-28 · math.DS · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RTEGPXIXIC2A2TWR75GGM66CNZ}

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	2026-05-22T01:03:59.166214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cc867dd1740b40d4ed1ff4c667bc26e70a5fea8d079ed86179fcabad36a7cab

Aliases

arxiv: 2603.02269 · arxiv_version: 2603.02269v2 · doi: 10.48550/arxiv.2603.02269 · pith_short_12: RTEGPXIXIC2A · pith_short_16: RTEGPXIXIC2A2TWR · pith_short_8: RTEGPXIX

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/RTEGPXIXIC2A2TWR75GGM66CNZ \
  | 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: 8cc867dd1740b40d4ed1ff4c667bc26e70a5fea8d079ed86179fcabad36a7cab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22a19a9f2adbec8475c0b24d15a2eb862d6540cc08f2926740051df455db2a3e",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-02-28T20:12:15Z",
    "title_canon_sha256": "e17f5bf5ba2626ef481560299e4f6d0a05d37116f63ac6a750f9f2c0221f88bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.02269",
    "kind": "arxiv",
    "version": 2
  }
}