Pith Number

pith:IRSFI2DC

pith:2015:IRSFI2DC4LSZLORQDDZ74SQXOX

not attested not anchored not stored refs pending

A fast and explicit algorithm for simulating the dynamics of small dust grains with smoothed particle hydrodynamics

Daniel J. Price (Monash), Guillaume Laibe (St Andrews)

arxiv:1505.00969 v3 · 2015-05-05 · astro-ph.IM · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRSFI2DC4LSZLORQDDZ74SQXOX}

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	2026-05-18T01:33:32.131656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4464546862e2e595ba3018f3fe4a1775dd528e749d8cd369d7f3897d0befc13e

Aliases

arxiv: 1505.00969 · arxiv_version: 1505.00969v3 · doi: 10.48550/arxiv.1505.00969 · pith_short_12: IRSFI2DC4LSZ · pith_short_16: IRSFI2DC4LSZLORQ · pith_short_8: IRSFI2DC

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/IRSFI2DC4LSZLORQDDZ74SQXOX \
  | 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: 4464546862e2e595ba3018f3fe4a1775dd528e749d8cd369d7f3897d0befc13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8edb076c434085a6dd00714b3b2c961d2d5012948cb771eafe33776d1aa6900",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-05T11:47:50Z",
    "title_canon_sha256": "e41af65f715a091b8f549f27f7d7854955596a6ee3da3102151ddbf3a9f5ad14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00969",
    "kind": "arxiv",
    "version": 3
  }
}