Pith Number

pith:CYW6MHCY

pith:2012:CYW6MHCYJDDFCNYSQKINV3NHMD

not attested not anchored not stored refs pending

Compact Finite Difference Approximations for Space Fractional Diffusion Equations

Han Zhou, Weihua Deng, WenYi Tian

arxiv:1204.4870 v1 · 2012-04-22 · 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{CYW6MHCYJDDFCNYSQKINV3NHMD}

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	2026-05-18T03:00:49.946270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

162de61c5848c65137128290daeda760d223bc7e44e0ce0d07ad604533e740a5

Aliases

arxiv: 1204.4870 · arxiv_version: 1204.4870v1 · doi: 10.48550/arxiv.1204.4870 · pith_short_12: CYW6MHCYJDDF · pith_short_16: CYW6MHCYJDDFCNYS · pith_short_8: CYW6MHCY

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/CYW6MHCYJDDFCNYSQKINV3NHMD \
  | 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: 162de61c5848c65137128290daeda760d223bc7e44e0ce0d07ad604533e740a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0776907060d4c76747dcba93165bba7fdf3c687bd205bf2833da8db73679178e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-04-22T09:04:04Z",
    "title_canon_sha256": "6a9a224001d416a1c9eaabbefd1022c48985f4fa25e62e9b7ccd538fde51ad19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4870",
    "kind": "arxiv",
    "version": 1
  }
}