Pith Number

pith:KKYLDBBZ

pith:1999:KKYLDBBZLABRDBLOY5QGJ26FPZ

not attested not anchored not stored refs pending

Primordial molecular clouds

DEMIRM), D. Puy (Institute of Theoretical Physics-Zurich, M. Signore (Observatoire de Paris, PSI)

arxiv:astro-ph/9902051 v1 · 1999-02-03 · 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{KKYLDBBZLABRDBLOY5QGJ26FPZ}

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	2026-05-18T04:31:21.602559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52b0b18439580311856ec76064ebc57e4cd8c1c2c85e1e8a9752e9475c110fc2

Aliases

arxiv: astro-ph/9902051 · arxiv_version: astro-ph/9902051v1 · doi: 10.48550/arxiv.astro-ph/9902051 · pith_short_12: KKYLDBBZLABR · pith_short_16: KKYLDBBZLABRDBLO · pith_short_8: KKYLDBBZ

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/KKYLDBBZLABRDBLOY5QGJ26FPZ \
  | 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: 52b0b18439580311856ec76064ebc57e4cd8c1c2c85e1e8a9752e9475c110fc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b535dc476b55c30d20aacfd2ef1caadc6ba63c8cb0a35606333a757730be7b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-03T08:54:35Z",
    "title_canon_sha256": "ed1dcff914d5a2b880d9cf13e6f3394417efcafc297e872577417c6a4b4a0bdf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902051",
    "kind": "arxiv",
    "version": 1
  }
}