Pith Number

pith:HDC4WIHL

pith:2013:HDC4WIHLITZ7YL5J4WUJASZA52

not attested not anchored not stored refs pending

A priori estimation of a time step for numerically solving parabolic problems

Petr N. Vabishchevich

arxiv:1311.2780 v1 · 2013-11-12 · cs.NA · 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{HDC4WIHLITZ7YL5J4WUJASZA52}

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	2026-05-18T03:07:21.886378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38c5cb20eb44f3fc2fa9e5a8904b20ee958b649a6a1c9763eb82908a876e9fd8

Aliases

arxiv: 1311.2780 · arxiv_version: 1311.2780v1 · doi: 10.48550/arxiv.1311.2780 · pith_short_12: HDC4WIHLITZ7 · pith_short_16: HDC4WIHLITZ7YL5J · pith_short_8: HDC4WIHL

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/HDC4WIHLITZ7YL5J4WUJASZA52 \
  | 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: 38c5cb20eb44f3fc2fa9e5a8904b20ee958b649a6a1c9763eb82908a876e9fd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4f3c1021057952f5c5e03fb99c0fb8c41f5f18e0a545c13e381d9f3ad8f364e",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-11-12T13:47:55Z",
    "title_canon_sha256": "fa4a10bccf611481b5a49c64a1b7998f4f710afc9c14ed4b0d8678a3e0782075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2780",
    "kind": "arxiv",
    "version": 1
  }
}