Pith Number

pith:7QN2DUWC

pith:2009:7QN2DUWCZJLA25GEAJZYU4MSQ7

not attested not anchored not stored refs pending

A Search for Carbon-Chain-Rich Cores in Dark Clouds

Masatoshi Ohishi, Satoshi Yamamoto, Tomoya Hirota

arxiv:0905.3511 v1 · 2009-05-21 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QN2DUWCZJLA25GEAJZYU4MSQ7}

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.

Cited by

2 papers in Pith

Measuring Magnetic Field Strengths in Galactic Star-forming Regions via the Zeeman Effect with the SKA

Chemical Complexity in the Early Stages of Star Formation in the SKAO Era

Receipt and verification

First computed	2026-05-18T04:29:42.982098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1ba1d2c2ca560d74c402738a719287ebdd217d69e321b95c010f67e1d374cd

Aliases

arxiv: 0905.3511 · arxiv_version: 0905.3511v1 · doi: 10.48550/arxiv.0905.3511 · pith_short_12: 7QN2DUWCZJLA · pith_short_16: 7QN2DUWCZJLA25GE · pith_short_8: 7QN2DUWC

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/7QN2DUWCZJLA25GEAJZYU4MSQ7 \
  | 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: fc1ba1d2c2ca560d74c402738a719287ebdd217d69e321b95c010f67e1d374cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "073531d67e2a65a1afee01442159b9c36625692ef311d6279e971542edf06fb4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-21T15:15:35Z",
    "title_canon_sha256": "9e3045ef85f188799cb34491bf516a2e213706913d7bcd270543666f0d0d8f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3511",
    "kind": "arxiv",
    "version": 1
  }
}