Pith Number

pith:VDFFZVQK

pith:2012:VDFFZVQKYIGMKV6T7BNQGAISQR

not attested not anchored not stored refs pending

How long does it take to form a molecular cloud?

Ian A. Bonnell, Paul C. Clark, Ralf S. Klessen, Simon C.O. Glover

arxiv:1204.5570 v1 · 2012-04-25 · 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{VDFFZVQKYIGMKV6T7BNQGAISQR}

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	2026-05-18T01:57:46.287063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8ca5cd60ac20cc557d3f85b03011284713d28b37d1a52975b84ac311e00e229

Aliases

arxiv: 1204.5570 · arxiv_version: 1204.5570v1 · doi: 10.48550/arxiv.1204.5570 · pith_short_12: VDFFZVQKYIGM · pith_short_16: VDFFZVQKYIGMKV6T · pith_short_8: VDFFZVQK

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/VDFFZVQKYIGMKV6T7BNQGAISQR \
  | 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: a8ca5cd60ac20cc557d3f85b03011284713d28b37d1a52975b84ac311e00e229

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb686310ca9c5cd88088a9d57d414fb9f22ae6cccc4bc228a7beb71c594ea533",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-25T06:27:14Z",
    "title_canon_sha256": "8abd5f0768ea91d52019163b100c0dbadcbd05876dc664dcd82ac2d2038b5299"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5570",
    "kind": "arxiv",
    "version": 1
  }
}