Pith Number

pith:Q7AUFX7J

pith:2013:Q7AUFX7J54GCEETVR7RALSK3B7

not attested not anchored not stored refs pending

A fast directional BEM for large-scale acoustic problems based on the Burton-Miller formulation

Jinyou Xiao, Lihua Wen, Yanchuang Cao, Yijun Liu

arxiv:1311.5202 v2 · 2013-11-17 · 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{Q7AUFX7J54GCEETVR7RALSK3B7}

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	2026-05-18T01:27:05.808259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c142dfe9ef0c2212758fe205c95b0fc2beecd6d10f5849caa7a99b0bb42868

Aliases

arxiv: 1311.5202 · arxiv_version: 1311.5202v2 · doi: 10.48550/arxiv.1311.5202 · pith_short_12: Q7AUFX7J54GC · pith_short_16: Q7AUFX7J54GCEETV · pith_short_8: Q7AUFX7J

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/Q7AUFX7J54GCEETVR7RALSK3B7 \
  | 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: 87c142dfe9ef0c2212758fe205c95b0fc2beecd6d10f5849caa7a99b0bb42868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d25e9f776b125e51d99f33dd6bb3a0c4d7669d71bb088e1cea4edf99402f349c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-11-17T09:09:32Z",
    "title_canon_sha256": "1cbbe42851b37556751279cfcac8332f355fd15b1838ebf749f4293d25a0df7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5202",
    "kind": "arxiv",
    "version": 2
  }
}