Pith Number

pith:JE3DEOSF

pith:2013:JE3DEOSFKG2ENVCECWT3FJJFHR

not attested not anchored not stored refs pending

An improved sink particle algorithm for SPH simulations

A. P. Whitworth, D. A. Hubber, S. Walch

arxiv:1301.4520 v1 · 2013-01-18 · astro-ph.IM · 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{JE3DEOSFKG2ENVCECWT3FJJFHR}

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	2026-05-18T01:52:05.623506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4936323a4551b446d44415a7b2a5253c7d33807ed9c64fd4ebd7456697676126

Aliases

arxiv: 1301.4520 · arxiv_version: 1301.4520v1 · doi: 10.48550/arxiv.1301.4520 · pith_short_12: JE3DEOSFKG2E · pith_short_16: JE3DEOSFKG2ENVCE · pith_short_8: JE3DEOSF

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/JE3DEOSFKG2ENVCECWT3FJJFHR \
  | 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: 4936323a4551b446d44415a7b2a5253c7d33807ed9c64fd4ebd7456697676126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2ebd1c54df62d3857c69c4546a261626a4cdf2f1e2becdd0966f9e2dea67728",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-01-18T23:08:01Z",
    "title_canon_sha256": "4fbbd736f3bdf08bb263782e079d80734dfc07ac330267e8bdaf755b317e835c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4520",
    "kind": "arxiv",
    "version": 1
  }
}