Pith Number

pith:AUAITBBC

pith:2019:AUAITBBC5SIUP5FCJ5BN5GTPY4

not attested not anchored not stored refs pending

Numerical approximations for the variable coefficient fractional diffusion equations with non-smooth data

Hong Wang, V.J. Ervin, Xiangcheng Zheng

arxiv:1902.10208 v1 · 2019-02-26 · 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{AUAITBBC5SIUP5FCJ5BN5GTPY4}

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	2026-05-17T23:52:31.478933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0500898422ec9147f4a24f42de9a6fc7250e502248eb56f39d3918a498ebd57a

Aliases

arxiv: 1902.10208 · arxiv_version: 1902.10208v1 · doi: 10.48550/arxiv.1902.10208 · pith_short_12: AUAITBBC5SIU · pith_short_16: AUAITBBC5SIUP5FC · pith_short_8: AUAITBBC

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/AUAITBBC5SIUP5FCJ5BN5GTPY4 \
  | 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: 0500898422ec9147f4a24f42de9a6fc7250e502248eb56f39d3918a498ebd57a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80e4bcd5db19e656d0ad75ba7f005c922b74dde9a67604144acff54a921fe24b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-26T20:40:08Z",
    "title_canon_sha256": "319fcdfb7bb5e70b76ec5e8ee25eece08d72a60f6942c9675b548cc702df2795"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10208",
    "kind": "arxiv",
    "version": 1
  }
}