Pith Number

pith:3ARF4NSX

pith:2013:3ARF4NSXG6HK5JSSAE7ALY3FHL

not attested not anchored not stored refs pending

X-ray discovery of a dwarf-galaxy galaxy collision

Gordon P. Garmire

arxiv:1308.0728 v1 · 2013-08-03 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3ARF4NSXG6HK5JSSAE7ALY3FHL}

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	2026-05-18T01:48:24.217162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8225e3657378eaea652013e05e3653ad7e47c021f585a5fa41ee2ef7b894bf9

Aliases

arxiv: 1308.0728 · arxiv_version: 1308.0728v1 · doi: 10.48550/arxiv.1308.0728 · pith_short_12: 3ARF4NSXG6HK · pith_short_16: 3ARF4NSXG6HK5JSS · pith_short_8: 3ARF4NSX

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/3ARF4NSXG6HK5JSSAE7ALY3FHL \
  | 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: d8225e3657378eaea652013e05e3653ad7e47c021f585a5fa41ee2ef7b894bf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f626a87489f8fcad38da89c3cb470b7d6eae7c835b47c6cd12e0d109b60b939b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-03T17:50:00Z",
    "title_canon_sha256": "796d41169aff219a92bb9d567ad54cee863ee297f8e03bc274863d88eb054a64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0728",
    "kind": "arxiv",
    "version": 1
  }
}