Pith Number

pith:VOOGCXH5

pith:2021:VOOGCXH5L3MSQOEQDXAW74RFJ6

not attested not anchored not stored refs pending

A High Order Compact Finite Difference Scheme for Elliptic Interface Problems with Discontinuous and High-Contrast Coefficients

Bin Han, Peter Minev, Qiwei Feng

arxiv:2105.04600 v1 · 2021-05-10 · 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{VOOGCXH5L3MSQOEQDXAW74RFJ6}

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	2026-07-05T02:39:22.255617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab9c615cfd5ed92838901dc16ff2254f9db32f3468f87ed4a67008d601a23937

Aliases

arxiv: 2105.04600 · arxiv_version: 2105.04600v1 · doi: 10.48550/arxiv.2105.04600 · pith_short_12: VOOGCXH5L3MS · pith_short_16: VOOGCXH5L3MSQOEQ · pith_short_8: VOOGCXH5

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/VOOGCXH5L3MSQOEQDXAW74RFJ6 \
  | 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: ab9c615cfd5ed92838901dc16ff2254f9db32f3468f87ed4a67008d601a23937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d583ff20e881461804977a070f804508bb9fc203f59ef0a31cf680666a1972cf",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-05-10T18:32:40Z",
    "title_canon_sha256": "ae518661862f1861a4fd1c24181fc57279e3011c2a98efac381647687c583368"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04600",
    "kind": "arxiv",
    "version": 1
  }
}