Pith Number

pith:OZBJP3EY

pith:2011:OZBJP3EY4T5O552P2A7LF3XE5A

not attested not anchored not stored refs pending

HALOGAS: HI Observations and Modeling of the Nearby Edge-on Spiral Galaxy NGC 4244

George H. Heald, Gianfranco Gentile, Laura K. Zschaechner, Peter Kamphuis, Richard J. Rand

arxiv:1107.4064 v1 · 2011-07-20 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZBJP3EY4T5O552P2A7LF3XE5A}

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	2026-05-18T04:17:14.093291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

764297ec98e4faeef74fd03eb2eee4e83b86f9bb0b5b9f469b97331d2b42f0cc

Aliases

arxiv: 1107.4064 · arxiv_version: 1107.4064v1 · doi: 10.48550/arxiv.1107.4064 · pith_short_12: OZBJP3EY4T5O · pith_short_16: OZBJP3EY4T5O552P · pith_short_8: OZBJP3EY

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/OZBJP3EY4T5O552P2A7LF3XE5A \
  | 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: 764297ec98e4faeef74fd03eb2eee4e83b86f9bb0b5b9f469b97331d2b42f0cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c57fb3de5b8f113beec761ee1a5b6ba0994a2de5c8ef6812e9ed953770ab232",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-07-20T18:52:02Z",
    "title_canon_sha256": "44efd0b9e93c1d67b22de677288410b75ecafbb6dbb5bd1bc1f36d462b412fe0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4064",
    "kind": "arxiv",
    "version": 1
  }
}