Pith Number

pith:ZIR45OAO

pith:2012:ZIR45OAO7QXCU3PHBP4UF47K5B

not attested not anchored not stored refs pending

On the possibility of the long lifetime of molecular clouds

A. Kasparova, A. Zasov

arxiv:1210.5738 v1 · 2012-10-21 · astro-ph.CO · 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{ZIR45OAO7QXCU3PHBP4UF47K5B}

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	2026-05-18T03:42:43.174376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca23ceb80efc2e2a6de70bf942f3eae842c38a22c0d440f363bdab48f1f893bf

Aliases

arxiv: 1210.5738 · arxiv_version: 1210.5738v1 · doi: 10.48550/arxiv.1210.5738 · pith_short_12: ZIR45OAO7QXC · pith_short_16: ZIR45OAO7QXCU3PH · pith_short_8: ZIR45OAO

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/ZIR45OAO7QXCU3PHBP4UF47K5B \
  | 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: ca23ceb80efc2e2a6de70bf942f3eae842c38a22c0d440f363bdab48f1f893bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a875569ca04fa673e28873983de450bbca41207609216d663998f9b55f896a1d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-21T16:30:03Z",
    "title_canon_sha256": "21d8d86abfee175334c04b1859310b5f5476198c0bc43c2ea266e6969a7cc92c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5738",
    "kind": "arxiv",
    "version": 1
  }
}