Pith Number

pith:RAJUTXO5

pith:2018:RAJUTXO52ZYRUKRIXHLULATIPJ

not attested not anchored not stored refs pending

Spectral approximation of a variable coefficient fractional diffusion equation in one space dimension

Hong Wang, V. J. Ervin, Xiangcheng Zheng

arxiv:1810.12420 v1 · 2018-10-29 · 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{RAJUTXO52ZYRUKRIXHLULATIPJ}

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	2026-05-18T00:02:02.728076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

881349ddddd6711a2a28b9d74582687a560c019ae7280e7d1b479542f8cd5059

Aliases

arxiv: 1810.12420 · arxiv_version: 1810.12420v1 · doi: 10.48550/arxiv.1810.12420 · pith_short_12: RAJUTXO52ZYR · pith_short_16: RAJUTXO52ZYRUKRI · pith_short_8: RAJUTXO5

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/RAJUTXO52ZYRUKRIXHLULATIPJ \
  | 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: 881349ddddd6711a2a28b9d74582687a560c019ae7280e7d1b479542f8cd5059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43789ea9c725830cd666db7a2488550eeb3ec5aa79123167fe5c1a216b8d7d06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-29T21:37:12Z",
    "title_canon_sha256": "bffa701448859a76e9f7e505585d606b604c21112f385940e1856dd67e202840"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12420",
    "kind": "arxiv",
    "version": 1
  }
}