Pith Number

pith:ACPL3G5I

pith:2011:ACPL3G5IAE6UAZ4JRX7GKDPGNF

not attested not anchored not stored refs pending

cuIBM -- A GPU-accelerated Immersed Boundary Method

Anush Krishnan, Lorena A. Barba, Simon K Layton

arxiv:1109.3524 v2 · 2011-09-16 · cs.CE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ACPL3G5IAE6UAZ4JRX7GKDPGNF}

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	2026-05-18T01:17:26.381591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

009ebd9ba8013d4067898dfe650de669511366a9517153638890eaf6ba40c611

Aliases

arxiv: 1109.3524 · arxiv_version: 1109.3524v2 · doi: 10.48550/arxiv.1109.3524 · pith_short_12: ACPL3G5IAE6U · pith_short_16: ACPL3G5IAE6UAZ4J · pith_short_8: ACPL3G5I

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/ACPL3G5IAE6UAZ4JRX7GKDPGNF \
  | 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: 009ebd9ba8013d4067898dfe650de669511366a9517153638890eaf6ba40c611

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10eda95fae428ca7e9304c81946e714e6dde636b6d6bcd178486eecae49ad936",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2011-09-16T04:02:15Z",
    "title_canon_sha256": "1c7b4e27bfb1121b1bdf55615ab56719aea41f62f8b88b9d06ea5aebbff1e8c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3524",
    "kind": "arxiv",
    "version": 2
  }
}