Pith Number

pith:LBDAXTTS

pith:1999:LBDAXTTSL6O45BJJMRW3ELZOYV

not attested not anchored not stored refs pending

Keck Spectra of Brown Dwarf Candidates and a Precise Determination of the Lithium Depletion Boundary in the Alpha Persei Open Cluster

D. Barrado y Navascu\'es, D.M. Terndrup, H.L. Morrison, J. Bouvier, J.R. Stauffer, K.L. Luhman, L. Allen, M. McCaughrean, P. Assouad, P. Harding, T. Stanke

arxiv:astro-ph/9909207 v2 · 1999-09-13 · 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{LBDAXTTSL6O45BJJMRW3ELZOYV}

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	2026-05-18T02:40:27.470141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58460bce725f9dce8529646db22f2ec564c87fd5569c01929363fdd5b7ed6877

Aliases

arxiv: astro-ph/9909207 · arxiv_version: astro-ph/9909207v2 · doi: 10.48550/arxiv.astro-ph/9909207 · pith_short_12: LBDAXTTSL6O4 · pith_short_16: LBDAXTTSL6O45BJJ · pith_short_8: LBDAXTTS

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/LBDAXTTSL6O45BJJMRW3ELZOYV \
  | 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: 58460bce725f9dce8529646db22f2ec564c87fd5569c01929363fdd5b7ed6877

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4423e84cfd6596201096a3137f7a7a34301d2d53fc4dca8572b5dd51e0797f2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-13T13:30:09Z",
    "title_canon_sha256": "1ea43dba682bd2f797cd31753ff6be68aad80349b99a354521a69703b6ba4a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909207",
    "kind": "arxiv",
    "version": 2
  }
}