pith. sign in
Pith Number

pith:ACPR4ZOD

pith:2012:ACPR4ZODUDLYXN7ODK4KOKA733
not attested not anchored not stored refs pending

Unusual displacement of HI due to tidal interaction in Arp 181

Chandreyee Sengupta, D. J. Saikia, K. S. Dwarakanath, T. C. Scott

arxiv:1211.6923 v2 · 2012-11-29 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ACPR4ZODUDLYXN7ODK4KOKA733}

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 2026-05-18T01:52:53.312309Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

009f1e65c3a0d78bb7ee1ab8a7281fdef499611d5a13dbd6bc61097f0c97c742

Aliases

arxiv: 1211.6923 · arxiv_version: 1211.6923v2 · doi: 10.48550/arxiv.1211.6923 · pith_short_12: ACPR4ZODUDLY · pith_short_16: ACPR4ZODUDLYXN7O · pith_short_8: ACPR4ZOD
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ACPR4ZODUDLYXN7ODK4KOKA733 \
  | 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: 009f1e65c3a0d78bb7ee1ab8a7281fdef499611d5a13dbd6bc61097f0c97c742
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "7fdc726e5bca7e501c60beb0953627c1a9887ff4bf3902388f3acd543b13bfe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-29T14:17:17Z",
    "title_canon_sha256": "52f69d734e18caf5690c73b35ef172bf081ec59cacfb957bbd7a26b2cc682549"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6923",
    "kind": "arxiv",
    "version": 2
  }
}