Pith Number

pith:4JIK2YJ4

pith:2017:4JIK2YJ4Y7JXW7YEXJMY5NRS5L

not attested not anchored not stored refs pending

Squeezed between shells? On the origin of the Lupus I molecular cloud. - II. APEX CO and GASS HI observations

A. Burkert, B. Gaczkowski, D. Kroell, J. Ngoumou, K. Fierlinger, M.G.H. Krause, R. Diehl, S. Flaischlen, T. Preibisch, V. Roccatagliata

arxiv:1710.07446 v1 · 2017-10-20 · astro-ph.GA · 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{4JIK2YJ4Y7JXW7YEXJMY5NRS5L}

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	2026-05-18T00:28:13.281574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e250ad613cc7d37b7f04ba598eb632ead3d4203a94dfef24f2bc8edc60a091c4

Aliases

arxiv: 1710.07446 · arxiv_version: 1710.07446v1 · doi: 10.48550/arxiv.1710.07446 · pith_short_12: 4JIK2YJ4Y7JX · pith_short_16: 4JIK2YJ4Y7JXW7YE · pith_short_8: 4JIK2YJ4

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/4JIK2YJ4Y7JXW7YEXJMY5NRS5L \
  | 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: e250ad613cc7d37b7f04ba598eb632ead3d4203a94dfef24f2bc8edc60a091c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1346e8826ac74c910b995d5a7ddb2ae852686ce222c1b841d483ee9dfd87e642",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-10-20T08:04:33Z",
    "title_canon_sha256": "65976d099469a6951fd5cc6e3c0557ccb52ee0940920b30cf0dde8f160035faf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07446",
    "kind": "arxiv",
    "version": 1
  }
}