Pith Number

pith:4HG6EO4C

pith:1998:4HG6EO4C2DEXX6BGA6R2YDXDY3

not attested not anchored not stored refs pending

Correlation Between Gas and Dust in Molecular Clouds: L977

C. Lada, E. Lada, J. Alves

arxiv:astro-ph/9809027 v1 · 1998-09-03 · 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{4HG6EO4C2DEXX6BGA6R2YDXDY3}

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	2026-07-04T16:06:59.453472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1cde23b82d0c97bf82607a3ac0ee3c6f21b8f8bc835ff442502e02390b58bef

Aliases

arxiv: astro-ph/9809027 · arxiv_version: astro-ph/9809027v1 · doi: 10.48550/arxiv.astro-ph/9809027 · pith_short_12: 4HG6EO4C2DEX · pith_short_16: 4HG6EO4C2DEXX6BG · pith_short_8: 4HG6EO4C

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/4HG6EO4C2DEXX6BGA6R2YDXDY3 \
  | 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: e1cde23b82d0c97bf82607a3ac0ee3c6f21b8f8bc835ff442502e02390b58bef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67b86c84481f3166def1c0fcdda864dcb40f18e34b81e5fe9c8acfd3ddf3579a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-09-03T05:52:28Z",
    "title_canon_sha256": "2fbbbca751be0d85518da6f7ca5ec56b3357212f693174855dd16e0089ed9606"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9809027",
    "kind": "arxiv",
    "version": 1
  }
}