Pith Number

pith:TCDVWPFW

pith:2019:TCDVWPFWOTB6UE55WOCHFCTUFZ

not attested not anchored not stored refs pending

Semi-dynamical systems generated by autonomous Caputo fractional differential equations

Peter E. Kloeden, T.S. Doan

arxiv:1905.09159 v1 · 2019-05-22 · 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{TCDVWPFWOTB6UE55WOCHFCTUFZ}

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	2026-05-17T23:45:21.807581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98875b3cb674c3ea13bdb384728a742e5088830667c2d87af2f87ab5dd8ac3f4

Aliases

arxiv: 1905.09159 · arxiv_version: 1905.09159v1 · doi: 10.48550/arxiv.1905.09159 · pith_short_12: TCDVWPFWOTB6 · pith_short_16: TCDVWPFWOTB6UE55 · pith_short_8: TCDVWPFW

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/TCDVWPFWOTB6UE55WOCHFCTUFZ \
  | 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: 98875b3cb674c3ea13bdb384728a742e5088830667c2d87af2f87ab5dd8ac3f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10f5a791aab692abf4006c3e32dcce9ce1ca05e2a16fc81fe0d08592e7a939b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-05-22T14:17:06Z",
    "title_canon_sha256": "5ce5596caa1a5c2c37d66b5b6c27bebf91332a58fd640433336ed1a7339305cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09159",
    "kind": "arxiv",
    "version": 1
  }
}