Pith Number

pith:2GUTHTRO

pith:2011:2GUTHTROKYQ4627DDAXATL2UNE

not attested not anchored not stored refs pending

Gravitational drag on a point mass in hypersonic motion through a gaseous medium

A. C. Raga, A. Esquivel, F.J. Sanchez-Salcedo, J. Canto

arxiv:1108.3032 v1 · 2011-08-15 · astro-ph.GA · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GUTHTROKYQ4627DDAXATL2UNE}

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	2026-05-18T02:00:53.752800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a933ce2e5621cf6be3182e09af5469378b18b7287b52eab22d3550089b9d42

Aliases

arxiv: 1108.3032 · arxiv_version: 1108.3032v1 · doi: 10.48550/arxiv.1108.3032 · pith_short_12: 2GUTHTROKYQ4 · pith_short_16: 2GUTHTROKYQ4627D · pith_short_8: 2GUTHTRO

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/2GUTHTROKYQ4627DDAXATL2UNE \
  | 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: d1a933ce2e5621cf6be3182e09af5469378b18b7287b52eab22d3550089b9d42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfb09313999e5c523812e15a268769f99cbf65ec8ad30dd3f0dc65729bf43e59",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-15T16:59:00Z",
    "title_canon_sha256": "cd229ed0a317d4277114f770410f67d86a395569bd5085f98573581a16ab2635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3032",
    "kind": "arxiv",
    "version": 1
  }
}