Pith Number

pith:IST4XVV6

pith:1999:IST4XVV6ZHUL4SG4757RIBN6BY

not attested not anchored not stored refs pending

The age-mass relation for chromospherically active binaries: III. Lithium depletion in giant components

D. Barrado y Navascues, E. De Castro, M. Cornide, M.J. Fernandez-Figueroa, R.J. Garcia Lopez

arxiv:astro-ph/9905244 v1 · 1999-05-19 · 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{IST4XVV6ZHUL4SG4757RIBN6BY}

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	2026-05-18T04:21:32.223895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44a7cbd6bec9e8be48dcff7f1405be0e1b67c03ec19e7831ec883564798c6318

Aliases

arxiv: astro-ph/9905244 · arxiv_version: astro-ph/9905244v1 · doi: 10.48550/arxiv.astro-ph/9905244 · pith_short_12: IST4XVV6ZHUL · pith_short_16: IST4XVV6ZHUL4SG4 · pith_short_8: IST4XVV6

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/IST4XVV6ZHUL4SG4757RIBN6BY \
  | 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: 44a7cbd6bec9e8be48dcff7f1405be0e1b67c03ec19e7831ec883564798c6318

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fb3240edff16900d6acc542929542e56f619aefea1d4acbc0aeb6230241a801",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-05-19T08:44:41Z",
    "title_canon_sha256": "e455d3309c3138e416963c5829c8fcaa8c710fef586cafb9f95c902a33a21820"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9905244",
    "kind": "arxiv",
    "version": 1
  }
}