Pith Number

pith:2XR3R65J

pith:2012:2XR3R65JU36KY2P43YHXZHQT66

not attested not anchored not stored refs pending

Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations

Christopher L. Fryer, David Riethmiller, Gabriel Rockefeller, Steven Diehl, Thomas S. Statler

arxiv:1211.0525 v2 · 2012-11-02 · astro-ph.IM · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2XR3R65JU36KY2P43YHXZHQT66}

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	2026-05-18T01:26:58.691636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5e3b8fba9a6fcac69fcde0f7c9e13f7aead4c1cbec97016dc9d95dc72784e47

Aliases

arxiv: 1211.0525 · arxiv_version: 1211.0525v2 · doi: 10.48550/arxiv.1211.0525 · pith_short_12: 2XR3R65JU36K · pith_short_16: 2XR3R65JU36KY2P4 · pith_short_8: 2XR3R65J

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/2XR3R65JU36KY2P43YHXZHQT66 \
  | 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: d5e3b8fba9a6fcac69fcde0f7c9e13f7aead4c1cbec97016dc9d95dc72784e47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4756b053376cbfe75c42514f3d58dff8dc155be76baaf508bcfd20b62b2e02bc",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-11-02T19:10:53Z",
    "title_canon_sha256": "c711659b0dcc72108cd5f3a43de7dfd8763fbf113375e0f88af068ed4e0af293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0525",
    "kind": "arxiv",
    "version": 2
  }
}