Pith Number

pith:Q5DSPY3B

pith:2006:Q5DSPY3BJZKRDZV2X3H4P725C4

not attested not anchored not stored refs pending

An energy-conserving formalism for adaptive gravitational force softening in SPH and N-body codes

D.J. Price (Exeter), J.J. Monaghan (Monash)

arxiv:astro-ph/0610872 v1 · 2006-10-30 · 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{Q5DSPY3BJZKRDZV2X3H4P725C4}

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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.

Cited by

2 papers in Pith

Full one-fluid dusty gas with multiple grain species in SPH

Gravitational wave emission from nonspherical collapse in an early matter-dominated era using N-body simulations

Receipt and verification

First computed	2026-05-18T01:07:25.167616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

874727e3614e5511e6babecfc7ff5d173a9579eb258b35ab6c6da84176068882

Aliases

arxiv: astro-ph/0610872 · arxiv_version: astro-ph/0610872v1 · doi: 10.48550/arxiv.astro-ph/0610872 · pith_short_12: Q5DSPY3BJZKR · pith_short_16: Q5DSPY3BJZKRDZV2 · pith_short_8: Q5DSPY3B

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/Q5DSPY3BJZKRDZV2X3H4P725C4 \
  | 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: 874727e3614e5511e6babecfc7ff5d173a9579eb258b35ab6c6da84176068882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02c8768724f2a575940d7414b8b54989bb9f9f181cf8cb04cf7e4817a49606df",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-30T09:03:58Z",
    "title_canon_sha256": "f41ac51fe4cc866d4c6e06b57a507b01bd87da2bb810ae9dced94e887a67617a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610872",
    "kind": "arxiv",
    "version": 1
  }
}