Pith Number

pith:BB7S2BFP

pith:2013:BB7S2BFPRS26W6DJQYGNEEX7ZW

not attested not anchored not stored refs pending

Strang-type preconditioners for solving fractional diffusion equations by boundary value methods

Hou-Biao Li, Liang Li, Ting-Zhu Huang, Xian-Ming Gu, Xi-Le Zhao

arxiv:1305.6653 v1 · 2013-05-28 · 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{BB7S2BFPRS26W6DJQYGNEEX7ZW}

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	2026-05-18T03:22:18.171702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087f2d04af8cb5eb7869860cd212ffcdbe6e4a30cded1bff84a54f82ad607944

Aliases

arxiv: 1305.6653 · arxiv_version: 1305.6653v1 · doi: 10.48550/arxiv.1305.6653 · pith_short_12: BB7S2BFPRS26 · pith_short_16: BB7S2BFPRS26W6DJ · pith_short_8: BB7S2BFP

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/BB7S2BFPRS26W6DJQYGNEEX7ZW \
  | 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: 087f2d04af8cb5eb7869860cd212ffcdbe6e4a30cded1bff84a54f82ad607944

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb8f6b7d3fe80c9d0ce977e43e68ba92ca4e15b87a1519c2d552c334bda6e37a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-05-28T22:59:19Z",
    "title_canon_sha256": "5e33e2505647ba13a9fd33334a99aaf32a3a51e445be1913b6358c9e9984f2af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6653",
    "kind": "arxiv",
    "version": 1
  }
}