Pith Number

pith:WWA727XM

pith:2018:WWA727XMNSGK52LZPSJNUTSOBQ

not attested not anchored not stored refs pending

Condition for low-mass star formation in shock-compressed metal-poor clouds

Daisuke Nakauchi, Kazuyuki Omukai, Raffaella Schneider

arxiv:1807.05334 v1 · 2018-07-14 · 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{WWA727XMNSGK52LZPSJNUTSOBQ}

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	2026-05-18T00:09:10.858066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b581fd7eec6c8caee9797c92da4e4e0c16a742a8418b40212338758c88b1f765

Aliases

arxiv: 1807.05334 · arxiv_version: 1807.05334v1 · doi: 10.48550/arxiv.1807.05334 · pith_short_12: WWA727XMNSGK · pith_short_16: WWA727XMNSGK52LZ · pith_short_8: WWA727XM

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/WWA727XMNSGK52LZPSJNUTSOBQ \
  | 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: b581fd7eec6c8caee9797c92da4e4e0c16a742a8418b40212338758c88b1f765

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de90a265a8ff45964ae5d2930f35b01343d61cbcb0b12219f1261e77015238d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-14T05:33:50Z",
    "title_canon_sha256": "d682cbdf661bc1edd272892e09456e1987685baa177192707f6a056ef46c305d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05334",
    "kind": "arxiv",
    "version": 1
  }
}