pith. sign in
Pith Number

pith:6VUWJG4H

pith:2011:6VUWJG4HC6TQ7FY6YBC2ZX5RYW
not attested not anchored not stored refs pending

Galaxy interactions II: High density environments

Diego G. Lambas, Nelson Padilla, Sol Alonso, Valeria Mesa

arxiv:1111.2292 v1 · 2011-11-09 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{6VUWJG4HC6TQ7FY6YBC2ZX5RYW}

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 2026-05-18T01:59:43.041720Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

f569649b8717a70f971ec045acdfb1c5b1a00089277201012a3a426ccd352a55

Aliases

arxiv: 1111.2292 · arxiv_version: 1111.2292v1 · doi: 10.48550/arxiv.1111.2292 · pith_short_12: 6VUWJG4HC6TQ · pith_short_16: 6VUWJG4HC6TQ7FY6 · pith_short_8: 6VUWJG4H
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/6VUWJG4HC6TQ7FY6YBC2ZX5RYW \
  | 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: f569649b8717a70f971ec045acdfb1c5b1a00089277201012a3a426ccd352a55
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a608ac930c7cf68c1ac13c827a32936a4579737345c3ac2d29861b8845f70921",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-09T17:55:58Z",
    "title_canon_sha256": "c904169fcace96be7879afa4a2ca253a7cfca635da313153445794a37bbdfd8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2292",
    "kind": "arxiv",
    "version": 1
  }
}