Pith Number

pith:FGSJRJB3

pith:2002:FGSJRJB3ZHF2ME6GV7UJTDUPL7

not attested not anchored not stored refs pending

Formation of gas disks in merging galaxies

Joshua E. Barnes

arxiv:astro-ph/0201250 v1 · 2002-01-15 · 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{FGSJRJB3ZHF2ME6GV7UJTDUPL7}

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	2026-07-04T16:29:15.682513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29a498a43bc9cba613c6afe8998e8f5fe490069dd8e8ccf6fd6dcccdcb37b317

Aliases

arxiv: astro-ph/0201250 · arxiv_version: astro-ph/0201250v1 · doi: 10.48550/arxiv.astro-ph/0201250 · pith_short_12: FGSJRJB3ZHF2 · pith_short_16: FGSJRJB3ZHF2ME6G · pith_short_8: FGSJRJB3

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/FGSJRJB3ZHF2ME6GV7UJTDUPL7 \
  | 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: 29a498a43bc9cba613c6afe8998e8f5fe490069dd8e8ccf6fd6dcccdcb37b317

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7835b8fdfb27a8eac86c5c3c96782f4e412a3f95077bc8873f70c73278c7fada",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-15T17:32:06Z",
    "title_canon_sha256": "321a35ea5ebb03024f54068f75129bbf22adef74aec1d3e44e9dac4a8c675b51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201250",
    "kind": "arxiv",
    "version": 1
  }
}