Pith Number

pith:HFHERMS2

pith:2019:HFHERMS2AMHOMRDDY3NNPYLVI5

not attested not anchored not stored refs pending

Cauchy problem for fractional non-autonomous evolution equations

Pengyu Chen, Xuping Zhang, Yongxiang Li

arxiv:1902.10321 v1 · 2019-02-27 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFHERMS2AMHOMRDDY3NNPYLVI5}

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	2026-05-17T23:52:31.200135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

394e48b25a030ee64463c6dad7e1754749a41247847c7f133a93d14ead77e619

Aliases

arxiv: 1902.10321 · arxiv_version: 1902.10321v1 · doi: 10.48550/arxiv.1902.10321 · pith_short_12: HFHERMS2AMHO · pith_short_16: HFHERMS2AMHOMRDD · pith_short_8: HFHERMS2

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/HFHERMS2AMHOMRDDY3NNPYLVI5 \
  | 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: 394e48b25a030ee64463c6dad7e1754749a41247847c7f133a93d14ead77e619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c56b65c5496f1a64b31f3b837fd74471f77ecb31f16ec172fb96fd18f56e2f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-02-27T03:31:05Z",
    "title_canon_sha256": "063a161a0a3d333a632705c368e9734f64ce5605a77b6b5d44587caeb2926bf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10321",
    "kind": "arxiv",
    "version": 1
  }
}