Pith Number

pith:FXIUFFDW

pith:2026:FXIUFFDWOXS7FF6TXM2E4LW3ML

not attested not anchored not stored refs pending

A fast and consistent sharp-interface immersed boundary method for moving bodies of arbitrary thicknes

Francesco Viola, Giovanni Vagnoli, Martino Andrea Scarpolini, Roberto Verzicco

arxiv:2606.09799 v1 · 2026-06-08 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FXIUFFDWOXS7FF6TXM2E4LW3ML}

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	2026-06-09T02:09:10.515096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dd142947675e5f297d3bb344e2edb62df895892bb5e888fb65d92338252530b

Aliases

arxiv: 2606.09799 · arxiv_version: 2606.09799v1 · doi: 10.48550/arxiv.2606.09799 · pith_short_12: FXIUFFDWOXS7 · pith_short_16: FXIUFFDWOXS7FF6T · pith_short_8: FXIUFFDW

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/FXIUFFDWOXS7FF6TXM2E4LW3ML \
  | 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: 2dd142947675e5f297d3bb344e2edb62df895892bb5e888fb65d92338252530b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fe90adc5fd932d3e8827b14354fb91c8012cac0ce20554966d2ebeb5491c570",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-06-08T17:52:54Z",
    "title_canon_sha256": "a3e161e3836107aa0bbc557c860430d1afc3330366df0ddd8ed91fcf863d7052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09799",
    "kind": "arxiv",
    "version": 1
  }
}