Pith Number

pith:45BKDEZI

pith:2011:45BKDEZIT46GBN5TA6X5VIACEF

not attested not anchored not stored refs pending

Symmetries without symmetries in Smoothed Particle Hydrodynamics

Jos\'e A. Gonz\'alez, Juan P. Cruz

arxiv:1105.1413 v1 · 2011-05-07 · gr-qc · 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{45BKDEZIT46GBN5TA6X5VIACEF}

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	2026-05-18T04:22:39.490349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e742a193289f3c60b7b307afdaa0022149ea3ea1326112cf5fd25a4d85b27372

Aliases

arxiv: 1105.1413 · arxiv_version: 1105.1413v1 · doi: 10.48550/arxiv.1105.1413 · pith_short_12: 45BKDEZIT46G · pith_short_16: 45BKDEZIT46GBN5T · pith_short_8: 45BKDEZI

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/45BKDEZIT46GBN5TA6X5VIACEF \
  | 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: e742a193289f3c60b7b307afdaa0022149ea3ea1326112cf5fd25a4d85b27372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b92c4262f7a2bda1ba883adad319d5993b7628a3b26d60d4d18210d161623b8e",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-05-07T02:59:39Z",
    "title_canon_sha256": "4900cd359471aca58a88997026661b2eafcf006fd1636a8f61e8b2b9c31618bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1413",
    "kind": "arxiv",
    "version": 1
  }
}