Pith Number

pith:52GM5U5Z

pith:1998:52GM5U5ZD3JCR73SL4XRWRFMC4

not attested not anchored not stored refs pending

Gravitational Collapse and Fragmentation in Molecular Clouds with Adaptive Mesh Refinement

Christopher F. McKee, J. Kelly Truelove, Richard I. Klein, Robert T. Fisher

arxiv:astro-ph/9806330 v1 · 1998-06-25 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52GM5U5ZD3JCR73SL4XRWRFMC4}

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	2026-05-18T01:21:56.471521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee8cced3b91ed228ff725f2f1b44ac171cc03bf8b0b5e53ec577b5d4c15e518f

Aliases

arxiv: astro-ph/9806330 · arxiv_version: astro-ph/9806330v1 · doi: 10.48550/arxiv.astro-ph/9806330 · pith_short_12: 52GM5U5ZD3JC · pith_short_16: 52GM5U5ZD3JCR73S · pith_short_8: 52GM5U5Z

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/52GM5U5ZD3JCR73SL4XRWRFMC4 \
  | 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: ee8cced3b91ed228ff725f2f1b44ac171cc03bf8b0b5e53ec577b5d4c15e518f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90b39d45cfd4bd4dc31e6bf173bb390bb30d6064650a38eeb3f8641cc27729e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-25T01:01:02Z",
    "title_canon_sha256": "82f9e298db60bde9ec2fc5dbbead17a967d851028c064c3cc623ca18748ed57d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806330",
    "kind": "arxiv",
    "version": 1
  }
}