Pith Number

pith:EQ4POW74

pith:2020:EQ4POW74JIT7JEWYAMDWWIHKKV

not attested not anchored not stored refs pending

FROST: a momentum-conserving CUDA implementation of a hierarchical fourth-order forward symplectic integrator

Antti Rantala, Thorsten Naab, Volker Springel

arxiv:2011.14984 v2 · 2020-11-25 · astro-ph.IM · astro-ph.GA · 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{EQ4POW74JIT7JEWYAMDWWIHKKV}

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	2026-07-05T02:22:06.643147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2438f75bfc4a27f492d803076b20ea5547b04938c950fa1cf2936df0920fc556

Aliases

arxiv: 2011.14984 · arxiv_version: 2011.14984v2 · doi: 10.48550/arxiv.2011.14984 · pith_short_12: EQ4POW74JIT7 · pith_short_16: EQ4POW74JIT7JEWY · pith_short_8: EQ4POW74

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/EQ4POW74JIT7JEWYAMDWWIHKKV \
  | 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: 2438f75bfc4a27f492d803076b20ea5547b04938c950fa1cf2936df0920fc556

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f5d8bc5a54d2982039ec76af6a0cd692d1974094f87529c7d1636b523a9b21e",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-11-25T19:00:16Z",
    "title_canon_sha256": "56effb79f11c7331a4726a69c6bb8577c1d8e76fa5006730d6073fb2804ff8be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.14984",
    "kind": "arxiv",
    "version": 2
  }
}