Pith Number

pith:3HJZSWS4

pith:2014:3HJZSWS4KQXA3GLIQK2BQI3JGV

not attested not anchored not stored refs pending

Fractional differentiation matrices with applications

Changpin Li, Fanhai Zeng

arxiv:1404.4429 v2 · 2014-04-17 · 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{3HJZSWS4KQXA3GLIQK2BQI3JGV}

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	2026-05-18T01:27:54.792924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9d3995a5c542e0d996882b41823693555378c11ab48a90d23cdc06c5eb4b7be

Aliases

arxiv: 1404.4429 · arxiv_version: 1404.4429v2 · doi: 10.48550/arxiv.1404.4429 · pith_short_12: 3HJZSWS4KQXA · pith_short_16: 3HJZSWS4KQXA3GLI · pith_short_8: 3HJZSWS4

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/3HJZSWS4KQXA3GLIQK2BQI3JGV \
  | 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: d9d3995a5c542e0d996882b41823693555378c11ab48a90d23cdc06c5eb4b7be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246f151e8baf92e51e068ab62e20adb5a866b11e5fa9e6d0fb2965151c0c786d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-17T06:42:40Z",
    "title_canon_sha256": "9e477b7dce8d415df238d84424c972d6322c67273095fc8f92d514a81deba2c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4429",
    "kind": "arxiv",
    "version": 2
  }
}