Pith Number

pith:DDTAVZBZ

pith:2018:DDTAVZBZNZNFJ2ACY2TV2Y6MUB

not attested not anchored not stored refs pending

CO observations toward the isolated mid-infrared bubble S44: External triggering of O-star formation by a cloud-cloud collision

Akio Ohama, Atsushi Nishimura, Hidetoshi Sano, Hiroaki Yamamoto, Kazufumi Torii, Keisuke Hasegawa, Kengo Tachihara, Mikito Kohno, Misaki Hanaoka, Rei Enokiya, Satoshi Yoshiike, Shinji Fujita, Yasuo Fukui, Yusuke Hattori

arxiv:1809.00118 v2 · 2018-09-01 · 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{DDTAVZBZNZNFJ2ACY2TV2Y6MUB}

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	2026-05-17T23:59:50.003007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e60ae4396e5a54e802c6a75d63cca067e73c2fefecba1cbf52cb9ccb06ddf6

Aliases

arxiv: 1809.00118 · arxiv_version: 1809.00118v2 · doi: 10.48550/arxiv.1809.00118 · pith_short_12: DDTAVZBZNZNF · pith_short_16: DDTAVZBZNZNFJ2AC · pith_short_8: DDTAVZBZ

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/DDTAVZBZNZNFJ2ACY2TV2Y6MUB \
  | 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: 18e60ae4396e5a54e802c6a75d63cca067e73c2fefecba1cbf52cb9ccb06ddf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cf8bf876cab9d78ff699c2d167c95d0e8efeab02dc800006d4f7a4d6e75d899",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-01T05:54:04Z",
    "title_canon_sha256": "4776d567d83d3fc33d87dd9508526f46064b437393770f4a8385add70176d1e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00118",
    "kind": "arxiv",
    "version": 2
  }
}