Pith Number

pith:XNUSZD4C

pith:1999:XNUSZD4CLMN4SNZA2VCDEYGJUD

not attested not anchored not stored refs pending

Chromospherically active binaries members of young stellar kinematic groups

A. Latorre (Dept. Astrofisica, D. Montes, E. De Castro, M. Cornide, M.J. Fernandez-Figueroa, Spain), Universidad Complutense de Madrid

arxiv:astro-ph/9912161 v1 · 1999-12-08 · 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{XNUSZD4CLMN4SNZA2VCDEYGJUD}

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	2026-05-18T01:07:35.747060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb692c8f825b1bc93720d5443260c9a0f2a9213878abd926278b94387a24999f

Aliases

arxiv: astro-ph/9912161 · arxiv_version: astro-ph/9912161v1 · doi: 10.48550/arxiv.astro-ph/9912161 · pith_short_12: XNUSZD4CLMN4 · pith_short_16: XNUSZD4CLMN4SNZA · pith_short_8: XNUSZD4C

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/XNUSZD4CLMN4SNZA2VCDEYGJUD \
  | 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: bb692c8f825b1bc93720d5443260c9a0f2a9213878abd926278b94387a24999f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82b501a3f95298592311f75a36afb9115d7030c86d9c3e4b470407bb4955570c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-08T13:48:58Z",
    "title_canon_sha256": "f0d225b412072349cf537b6deb7d2c2e0a9e32701e5eca120dfeb5ab984ee9eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912161",
    "kind": "arxiv",
    "version": 1
  }
}