Pith Number

pith:F4SH2R5Z

pith:2008:F4SH2R5ZSIE2RWTX3OGXC3IZLX

not attested not anchored not stored refs pending

Higher order derivative estimates for finite-difference schemes

Istv\'an Gy\"ongy, Nicolai Krylov

arxiv:0805.3149 v1 · 2008-05-20 · math.NA · cs.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4SH2R5ZSIE2RWTX3OGXC3IZLX}

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	2026-06-03T22:06:06.303212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f247d47b99209a8da77db8d716d195de98ba0ed01e444c1e36c330791878e84

Aliases

arxiv: 0805.3149 · arxiv_version: 0805.3149v1 · doi: 10.48550/arxiv.0805.3149 · pith_short_12: F4SH2R5ZSIE2 · pith_short_16: F4SH2R5ZSIE2RWTX · pith_short_8: F4SH2R5Z

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/F4SH2R5ZSIE2RWTX3OGXC3IZLX \
  | 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: 2f247d47b99209a8da77db8d716d195de98ba0ed01e444c1e36c330791878e84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8bae7977f68275ebca430f149882fcd90762faf941663860d943c3c3eb2bf1d",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-05-20T19:31:45Z",
    "title_canon_sha256": "af39bfa3a05cad3f47a5ab6e686fbdf620d59de098ff71c3289343afeb774eb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.3149",
    "kind": "arxiv",
    "version": 1
  }
}