Pith Number

pith:2NY67KAR

pith:2018:2NY67KAR6CKJLJEOKGI2NURUOO

not attested not anchored not stored refs pending

A Multigrid Method for Unfitted Finite Element Discretizations of Elliptic Interface Problems

Arnold Reusken, Sven Gross, Thomas Ludescher

arxiv:1807.10196 v1 · 2018-07-26 · 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{2NY67KAR6CKJLJEOKGI2NURUOO}

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	2026-05-18T00:09:45.112815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d371efa811f09495a48e5191a6d23473a21e96c850b271337cd5b4c14cd72b84

Aliases

arxiv: 1807.10196 · arxiv_version: 1807.10196v1 · doi: 10.48550/arxiv.1807.10196 · pith_short_12: 2NY67KAR6CKJ · pith_short_16: 2NY67KAR6CKJLJEO · pith_short_8: 2NY67KAR

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/2NY67KAR6CKJLJEOKGI2NURUOO \
  | 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: d371efa811f09495a48e5191a6d23473a21e96c850b271337cd5b4c14cd72b84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "363d6c38680d3b8dbba0727065ad4ebad4887699c10b5f51a5777a380c8d656f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-26T15:32:51Z",
    "title_canon_sha256": "f90e32bf496c449f68bc3d1475007aebe94a33b2a02faba30a705a511ea2873b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10196",
    "kind": "arxiv",
    "version": 1
  }
}