Pith Number

pith:BUEL2MK7

pith:2019:BUEL2MK7C4W2KD7DJYMNXYOGCD

not attested not anchored not stored refs pending

A fast method for variable-order space-fractional diffusion equations

Hong Wang, Jinhong Jia, Xiangcheng Zheng

arxiv:1907.02697 v2 · 2019-07-05 · math.NA · cs.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{BUEL2MK7C4W2KD7DJYMNXYOGCD}

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	2026-05-17T23:41:16.920010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d08bd315f172da50fe34e18dbe1c610ff0471b43898f64f0d39f8556355d9c0

Aliases

arxiv: 1907.02697 · arxiv_version: 1907.02697v2 · doi: 10.48550/arxiv.1907.02697 · pith_short_12: BUEL2MK7C4W2 · pith_short_16: BUEL2MK7C4W2KD7D · pith_short_8: BUEL2MK7

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/BUEL2MK7C4W2KD7DJYMNXYOGCD \
  | 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: 0d08bd315f172da50fe34e18dbe1c610ff0471b43898f64f0d39f8556355d9c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0268651ab217b310f2f988c2d5fb7888208b2d2ffb7b4632ac31eb82d31c0bb",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-05T06:55:51Z",
    "title_canon_sha256": "3e7ee7950d40bbc383b15c3c620cfe1316a095b7a250f35de30f2549429e7716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02697",
    "kind": "arxiv",
    "version": 2
  }
}