Pith Number

pith:Q2NRQNVQ

pith:2016:Q2NRQNVQYFLMD77Y7CG5344I4O

not attested not anchored not stored refs pending

Fictitious domain method with boundary value correction using penalty-free Nitsche method

Erik Burman, Mats G. Larson, Susanne Claus, Thomas Boiveau

arxiv:1610.04482 v1 · 2016-10-14 · 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{Q2NRQNVQYFLMD77Y7CG5344I4O}

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	2026-05-18T01:02:15.066358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869b1836b0c156c1fff8f88dddf388e39593e78931e267c89d376505715f1532

Aliases

arxiv: 1610.04482 · arxiv_version: 1610.04482v1 · doi: 10.48550/arxiv.1610.04482 · pith_short_12: Q2NRQNVQYFLM · pith_short_16: Q2NRQNVQYFLMD77Y · pith_short_8: Q2NRQNVQ

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/Q2NRQNVQYFLMD77Y7CG5344I4O \
  | 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: 869b1836b0c156c1fff8f88dddf388e39593e78931e267c89d376505715f1532

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6274914fad93d146c120ea4c1cceaf90eb78ef365d74fd8d0a1319bfabc73b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-10-14T14:34:03Z",
    "title_canon_sha256": "57e5bf11ad9a75be3c7a19ff8c5f73de938fc7a8a8cc4255b984178a4f356394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.04482",
    "kind": "arxiv",
    "version": 1
  }
}