Pith Number

pith:USUTK3V6

pith:2018:USUTK3V6Y6MMYLLAPUAFNKAQVL

not attested not anchored not stored refs pending

An efficient numerical method for a time-fractional diffusion equation

Aimin Xu, Anbo Le, Jian Huang, Zhongdi Cen

arxiv:1810.07935 v1 · 2018-10-18 · 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{USUTK3V6Y6MMYLLAPUAFNKAQVL}

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	2026-05-18T00:02:53.698563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4a9356ebec798cc2d607d0056a810aafbe6a500876c5ff57e3ad889057ef596

Aliases

arxiv: 1810.07935 · arxiv_version: 1810.07935v1 · doi: 10.48550/arxiv.1810.07935 · pith_short_12: USUTK3V6Y6MM · pith_short_16: USUTK3V6Y6MMYLLA · pith_short_8: USUTK3V6

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/USUTK3V6Y6MMYLLAPUAFNKAQVL \
  | 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: a4a9356ebec798cc2d607d0056a810aafbe6a500876c5ff57e3ad889057ef596

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d58266f5305b7893cc1460d162dd750701340c1f715f79210ff9cad1bf957755",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-18T07:51:35Z",
    "title_canon_sha256": "5a5d1951d8b31d859b90b100614d197939fca4d5c44a51b0c83995f0a7e92e94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07935",
    "kind": "arxiv",
    "version": 1
  }
}