Pith Number

pith:ZSJRCF76

pith:2009:ZSJRCF76VJQMV2DJ5OBMY7ALXU

not attested not anchored not stored refs pending

CI and CO in nearby galaxy centers. The star-burst galaxies NGC 278, NGC 660, NGC 3628, NGC 4631, and NGC 4666

F.P. Israel (Sterrewacht, Leiden University, Netherlands)

arxiv:0908.3586 v1 · 2009-08-25 · 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{ZSJRCF76VJQMV2DJ5OBMY7ALXU}

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	2026-05-18T02:12:23.226816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc931117feaa60cae869eb82cc7c0bbd3d21be55440d69ef287b07efbfb4ebb7

Aliases

arxiv: 0908.3586 · arxiv_version: 0908.3586v1 · doi: 10.48550/arxiv.0908.3586 · pith_short_12: ZSJRCF76VJQM · pith_short_16: ZSJRCF76VJQMV2DJ · pith_short_8: ZSJRCF76

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/ZSJRCF76VJQMV2DJ5OBMY7ALXU \
  | 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: cc931117feaa60cae869eb82cc7c0bbd3d21be55440d69ef287b07efbfb4ebb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e6b8e2605e9fa02662eddbbe54a65d1fd9c51912484e775646e12eabde4c99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-25T10:39:48Z",
    "title_canon_sha256": "e318b874beec3fe6aaf36fc5a0795bdaea1682cd222ed01552164efd73d8f73e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3586",
    "kind": "arxiv",
    "version": 1
  }
}