Pith Number

pith:HBG2TBMJ

pith:1995:HBG2TBMJUOE2VUWPJIXMHY2IU3

not attested not anchored not stored refs pending

GRAPESPH: Cosmological SPH simulations with the special purpose hardware GRAPE

Matthias Steinmetz

arxiv:astro-ph/9504050 v1 · 1995-04-15 · astro-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{HBG2TBMJUOE2VUWPJIXMHY2IU3}

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	2026-05-18T01:40:23.546018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

384da98589a389aad2cf4a2ec3e348a6f3ca2b689b33992c2d0d51f9a736c15d

Aliases

arxiv: astro-ph/9504050 · arxiv_version: astro-ph/9504050v1 · doi: 10.48550/arxiv.astro-ph/9504050 · pith_short_12: HBG2TBMJUOE2 · pith_short_16: HBG2TBMJUOE2VUWP · pith_short_8: HBG2TBMJ

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/HBG2TBMJUOE2VUWPJIXMHY2IU3 \
  | 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: 384da98589a389aad2cf4a2ec3e348a6f3ca2b689b33992c2d0d51f9a736c15d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968214f8ba8bbe94fc86bb120c671c36d82deef82588301be3705c4f9de238ca",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-04-15T21:34:01Z",
    "title_canon_sha256": "46db120bfbd511cc8e8c77bd2d3415d3269fb83704352cde49fe80af1b2336bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9504050",
    "kind": "arxiv",
    "version": 1
  }
}