Pith Number

pith:EYB64W7W

pith:2008:EYB64W7WURNBYPHQ2TPNDXB2UL

not attested not anchored not stored refs pending

Minimal positive stencils in meshfree finite difference methods for the Poisson equation

Benjamin Seibold

arxiv:0802.2674 v2 · 2008-02-19 · 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{EYB64W7WURNBYPHQ2TPNDXB2UL}

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	2026-06-03T22:06:04.526082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2603ee5bf6a45a1c3cf0d4ded1dc3aa2f14cb6009eab124182a301ea2b223277

Aliases

arxiv: 0802.2674 · arxiv_version: 0802.2674v2 · doi: 10.48550/arxiv.0802.2674 · pith_short_12: EYB64W7WURNB · pith_short_16: EYB64W7WURNBYPHQ · pith_short_8: EYB64W7W

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/EYB64W7WURNBYPHQ2TPNDXB2UL \
  | 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: 2603ee5bf6a45a1c3cf0d4ded1dc3aa2f14cb6009eab124182a301ea2b223277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c32e9aa453f3f0b48bb8195ec8139e667292499845ff8e5d388d01aab019b4c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-02-19T15:45:25Z",
    "title_canon_sha256": "4e561857bbf64a30737bd09e545387991625949f6294c3c7ce17c32bdea4af55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2674",
    "kind": "arxiv",
    "version": 2
  }
}