Pith Number

pith:UXGSOGL2

pith:1999:UXGSOGL2COFUMH5KY7JEPOFRFO

not attested not anchored not stored refs pending

Rotation and X-ray emission from protostars

Katsuji Koyama, Nicolas Grosso, Thierry Montmerle, Yohko Tsuboi

arxiv:astro-ph/9911379 v1 · 1999-11-19 · 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{UXGSOGL2COFUMH5KY7JEPOFRFO}

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	2026-07-04T16:11:55.364392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5cd27197a138b461faac7d247b8b12b8b99b9140b0d1445b5038cbbc8286a5c

Aliases

arxiv: astro-ph/9911379 · arxiv_version: astro-ph/9911379v1 · doi: 10.48550/arxiv.astro-ph/9911379 · pith_short_12: UXGSOGL2COFU · pith_short_16: UXGSOGL2COFUMH5K · pith_short_8: UXGSOGL2

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/UXGSOGL2COFUMH5KY7JEPOFRFO \
  | 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: a5cd27197a138b461faac7d247b8b12b8b99b9140b0d1445b5038cbbc8286a5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa0b048bc41574ce3c390da925fa8792db3f4826ba42a50a00da8b3fe2c93d6d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-19T11:04:47Z",
    "title_canon_sha256": "fd0071e7b43d1aba7cf180c6ddb04e5fff314a582e975085b2b76ba5a2d3eef4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911379",
    "kind": "arxiv",
    "version": 1
  }
}