Pith Number

pith:LOYWGKBG

pith:2009:LOYWGKBGYCCUI62FJN5ZIFRHN3

not attested not anchored not stored refs pending

The disc-dominated host galaxy of FR-I radio source B2 0722+30

(2) Univ. of Sheffield, (3) Astron, 4), (4) Kapteyn Astron. Inst., (5) Leiden Obs., (6) Univ. of Arizona, (7) NRAO), B. H. C. Emonts (1), C. N. Tadhunter (2), E. Brogt (6), G. van Moorsel (7) ((1) CSIRO-ATNF, J. Holt (5), R. Morganti (3, T. A. Oosterloo (3

arxiv:0904.3381 v1 · 2009-04-22 · astro-ph.GA · 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{LOYWGKBGYCCUI62FJN5ZIFRHN3}

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	2026-05-18T02:13:58.285700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bb1632826c085447b454b7b9416276ef6922548bb32ca1d6923da7fce2004df

Aliases

arxiv: 0904.3381 · arxiv_version: 0904.3381v1 · doi: 10.48550/arxiv.0904.3381 · pith_short_12: LOYWGKBGYCCU · pith_short_16: LOYWGKBGYCCUI62F · pith_short_8: LOYWGKBG

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/LOYWGKBGYCCUI62FJN5ZIFRHN3 \
  | 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: 5bb1632826c085447b454b7b9416276ef6922548bb32ca1d6923da7fce2004df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b10dabc824e5a52d5c1e682e3cddfa3846bf3c049910ac42bdf8d70e8dfcfaf2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-22T08:20:57Z",
    "title_canon_sha256": "38af5db9ae341e8cd9a6c1001417ac20f3ffdcadcb09ae7b27e6477868f79155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3381",
    "kind": "arxiv",
    "version": 1
  }
}