Pith Number

pith:OQMJEVDS

pith:2012:OQMJEVDSJ6P6WFOXZZGSYC5AKP

not attested not anchored not stored refs pending

4.45 Pflops Astrophysical N-Body Simulation on K computer -- The Gravitational Trillion-Body Problem

Junichiro Makino, Keigo Nitadori, Tomoaki Ishiyama

arxiv:1211.4406 v5 · 2012-11-19 · astro-ph.CO · astro-ph.IM · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQMJEVDSJ6P6WFOXZZGSYC5AKP}

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	2026-05-18T02:19:06.433275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74189254724f9feb15d7ce4d2c0ba053f11ea89279e47b868b58074322fcbdc7

Aliases

arxiv: 1211.4406 · arxiv_version: 1211.4406v5 · doi: 10.48550/arxiv.1211.4406 · pith_short_12: OQMJEVDSJ6P6 · pith_short_16: OQMJEVDSJ6P6WFOX · pith_short_8: OQMJEVDS

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/OQMJEVDSJ6P6WFOXZZGSYC5AKP \
  | 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: 74189254724f9feb15d7ce4d2c0ba053f11ea89279e47b868b58074322fcbdc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a09cfc5f284f3715320211ffe5f22b516d8c35753f01b4686526c6b9a7ee664f",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-19T13:26:00Z",
    "title_canon_sha256": "251c6b51df9413444de22253b999a276dcd67c3f61817ec55d29de03d1952057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4406",
    "kind": "arxiv",
    "version": 5
  }
}