Pith Number

pith:NNKTY6WJ

pith:2022:NNKTY6WJ6OCHN7LST74MVCM7KU

not attested not anchored not stored refs pending

Mesh-free hydrodynamics in PKDGRAV3 for galaxy formation simulations

Claudio Dalla Vecchia, Douglas Potter, Isaac Alonso Asensio, Joachim Stadel

arxiv:2211.12243 v1 · 2022-11-22 · astro-ph.GA · astro-ph.IM · physics.comp-ph · 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{NNKTY6WJ6OCHN7LST74MVCM7KU}

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	2026-07-05T05:28:32.014550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b553c7ac9f38476fd729ff8ca899f551edb61ba8ed40ace58a6ba4b5433394b

Aliases

arxiv: 2211.12243 · arxiv_version: 2211.12243v1 · doi: 10.48550/arxiv.2211.12243 · pith_short_12: NNKTY6WJ6OCH · pith_short_16: NNKTY6WJ6OCHN7LS · pith_short_8: NNKTY6WJ

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/NNKTY6WJ6OCHN7LST74MVCM7KU \
  | 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: 6b553c7ac9f38476fd729ff8ca899f551edb61ba8ed40ace58a6ba4b5433394b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08816d99c40c62448f5e3da296a65d4cd8330bf30a9561b41394dcbb4a6bc29c",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.comp-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-22T12:51:42Z",
    "title_canon_sha256": "945fa7a4d2cd33415e3da485d02fb86be47a5f33ed81f38827192c89f78ebd95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.12243",
    "kind": "arxiv",
    "version": 1
  }
}