Pith Number

pith:DV6WYTG3

pith:2020:DV6WYTG3JSXHVNTC3AVFLBQNBT

not attested not anchored not stored refs pending

An unfitted RBF-FD method in a least-squares setting for elliptic PDEs on complex geometries

Eva Breznik, Igor Tominec

arxiv:2007.07775 v2 · 2020-07-15 · 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{DV6WYTG3JSXHVNTC3AVFLBQNBT}

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	2026-07-05T02:29:28.656254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d7d6c4cdb4cae7ab662d82a55860d0cd39bf458cc23ba4f52545a24cb1238a9

Aliases

arxiv: 2007.07775 · arxiv_version: 2007.07775v2 · doi: 10.48550/arxiv.2007.07775 · pith_short_12: DV6WYTG3JSXH · pith_short_16: DV6WYTG3JSXHVNTC · pith_short_8: DV6WYTG3

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/DV6WYTG3JSXHVNTC3AVFLBQNBT \
  | 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: 1d7d6c4cdb4cae7ab662d82a55860d0cd39bf458cc23ba4f52545a24cb1238a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c4ba25ab5bd91e0893919117231b1bb4d484b34e3b9a79c9451997a7a774f31",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-07-15T15:49:11Z",
    "title_canon_sha256": "8038d845030c8d29605dc8887fd3bde6a7096206bde6f43e75d0f06d60011038"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07775",
    "kind": "arxiv",
    "version": 2
  }
}