Pith Number

pith:IM7KSVOO

pith:2004:IM7KSVOOJ66ZQYAOKRUN2NW3QB

not attested not anchored not stored refs pending

Colliding molecular clouds in head-on galaxy collisions

E. Brinks, J. Braine, P.-A. Duc, S. Leon, U. Lisenfeld, V. Charmandaris

arxiv:astro-ph/0402148 v1 · 2004-02-06 · 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{IM7KSVOOJ66ZQYAOKRUN2NW3QB}

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	2026-05-18T01:07:32.825040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

433ea955ce4fbd98600e5468dd36db804a70d8ad854049503a01b1e08ac0be85

Aliases

arxiv: astro-ph/0402148 · arxiv_version: astro-ph/0402148v1 · doi: 10.48550/arxiv.astro-ph/0402148 · pith_short_12: IM7KSVOOJ66Z · pith_short_16: IM7KSVOOJ66ZQYAO · pith_short_8: IM7KSVOO

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/IM7KSVOOJ66ZQYAOKRUN2NW3QB \
  | 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: 433ea955ce4fbd98600e5468dd36db804a70d8ad854049503a01b1e08ac0be85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62df240e47368a77893a8cfd29ac9e41372386bd55eeeb5a6a2d74a72399ffeb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-06T14:48:54Z",
    "title_canon_sha256": "021bac50e45f1e38de51df9ef9017480f1229e1501cf6928fdd6cb8de443dca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402148",
    "kind": "arxiv",
    "version": 1
  }
}