Pith Number

pith:PKVDO4WB

pith:2011:PKVDO4WBEJ5O2TK23DXF5PQQRL

not attested not anchored not stored refs pending

Dusty gas with SPH - I. Algorithm and test suite

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

arxiv:1111.3090 v1 · 2011-11-14 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKVDO4WBEJ5O2TK23DXF5PQQRL}

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	2026-05-18T01:59:39.508910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aaa3772c1227aed4d5ad8ee5ebe108ad961aa28e77f61c1f218b097e34adbc5

Aliases

arxiv: 1111.3090 · arxiv_version: 1111.3090v1 · doi: 10.48550/arxiv.1111.3090 · pith_short_12: PKVDO4WBEJ5O · pith_short_16: PKVDO4WBEJ5O2TK2 · pith_short_8: PKVDO4WB

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/PKVDO4WBEJ5O2TK23DXF5PQQRL \
  | 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: 7aaa3772c1227aed4d5ad8ee5ebe108ad961aa28e77f61c1f218b097e34adbc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3850060e179bdf832a2a1d538466fd3b596ddfc041ee3469a55b183c9607c6c7",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-14T02:29:04Z",
    "title_canon_sha256": "d2e672a411b837006287dd2ec3e7095eac3dabaf12253d20d580c8d60103fb29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3090",
    "kind": "arxiv",
    "version": 1
  }
}