Pith Number

pith:VM3M63I5

pith:2019:VM3M63I55BM2MHLY76DQ5QGGJI

not attested not anchored not stored refs pending

A Staggered Semi-Analytic Method for Simulating Dust Grains Subject to Gas Drag

Dhruv Muley, Jeffrey Fung

arxiv:1909.02006 v2 · 2019-09-04 · astro-ph.EP · 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{VM3M63I55BM2MHLY76DQ5QGGJI}

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	2026-07-05T00:30:23.294642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab36cf6d1de859a61d78ff870ec0c64a2336a911f1ba74a5dce6dd6f0ed7d6c4

Aliases

arxiv: 1909.02006 · arxiv_version: 1909.02006v2 · doi: 10.48550/arxiv.1909.02006 · pith_short_12: VM3M63I55BM2 · pith_short_16: VM3M63I55BM2MHLY · pith_short_8: VM3M63I5

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/VM3M63I55BM2MHLY76DQ5QGGJI \
  | 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: ab36cf6d1de859a61d78ff870ec0c64a2336a911f1ba74a5dce6dd6f0ed7d6c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c051187192b5655fc40375fe78f54f99a50cc0a57b9aae4604ce19bceb4a445",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-09-04T18:00:00Z",
    "title_canon_sha256": "4200843c18a4dfd6b63d14e67a0740f691a5ff212661e4ce18833e69985f8026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02006",
    "kind": "arxiv",
    "version": 2
  }
}