Pith Number

pith:KWQQNPMI

pith:2009:KWQQNPMIOV34UE2V63GNY4TYUP

not attested not anchored not stored refs pending

Subarcsecond Imaging of the High-Mass Star Forming Region Onsala 1

Jeremy Lim (ASIAA, Sheng-Yuan Liu, Taiwan), Yu-Nung Su

arxiv:0904.3161 v1 · 2009-04-21 · 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{KWQQNPMIOV34UE2V63GNY4TYUP}

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	2026-05-18T04:29:43.384161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55a106bd887577ca1355f6ccdc7278a3f385978a9863e21119279d90652a4c98

Aliases

arxiv: 0904.3161 · arxiv_version: 0904.3161v1 · doi: 10.48550/arxiv.0904.3161 · pith_short_12: KWQQNPMIOV34 · pith_short_16: KWQQNPMIOV34UE2V · pith_short_8: KWQQNPMI

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/KWQQNPMIOV34UE2V63GNY4TYUP \
  | 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: 55a106bd887577ca1355f6ccdc7278a3f385978a9863e21119279d90652a4c98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a542ee37ba41fad53832d6352a6ad52abddf79d0424f015752d83c740694b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-04-21T04:25:09Z",
    "title_canon_sha256": "da91667733e2b220c267b61d9cf5a6429e2893554b94901f7c4ab6664a8cb5ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3161",
    "kind": "arxiv",
    "version": 1
  }
}