Pith Number

pith:3GLUKBU6

pith:2011:3GLUKBU6F5TO3OPCQSE7WKG2WV

not attested not anchored not stored refs pending

High-Performance Astrophysical Simulations and Analysis with Python

(2) Michigan State University), Britton D. Smith (2) ((1) Columbia University, Matthew J. Turk (1)

arxiv:1112.4482 v1 · 2011-12-19 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3GLUKBU6F5TO3OPCQSE7WKG2WV}

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	2026-05-18T04:05:58.700079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d99745069e2f66edb9e28489fb28dab56ceb91f9bdea93c88e832a5add15f6df

Aliases

arxiv: 1112.4482 · arxiv_version: 1112.4482v1 · doi: 10.48550/arxiv.1112.4482 · pith_short_12: 3GLUKBU6F5TO · pith_short_16: 3GLUKBU6F5TO3OPC · pith_short_8: 3GLUKBU6

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/3GLUKBU6F5TO3OPCQSE7WKG2WV \
  | 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: d99745069e2f66edb9e28489fb28dab56ceb91f9bdea93c88e832a5add15f6df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e8bd5bb85e14d6b37ed6f6992867c790ed11938e3d7981812f2559a6b5538e3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-19T21:00:05Z",
    "title_canon_sha256": "c77ba35459064130f74d465006a73ab22d9a78a1668f5f3bba37d857595a6f98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4482",
    "kind": "arxiv",
    "version": 1
  }
}