Pith Number

pith:BB56L4DL

pith:2006:BB56L4DLXTW2UCLSZZ5IWFABR2

not attested not anchored not stored refs pending

A brown dwarf desert for intermediate mass stars in Sco OB2?

A.G.A. Brown (Leiden), L. Kaper (Amsterdam), M.B.N. Kouwenhoven (Sheffield)

arxiv:astro-ph/0611903 v1 · 2006-11-29 · 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{BB56L4DLXTW2UCLSZZ5IWFABR2}

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	2026-05-18T01:40:28.629013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087be5f06bbcedaa0972ce7a8b14018ea662ddf3eb7a63695fa7d55cbbcaa9d3

Aliases

arxiv: astro-ph/0611903 · arxiv_version: astro-ph/0611903v1 · doi: 10.48550/arxiv.astro-ph/0611903 · pith_short_12: BB56L4DLXTW2 · pith_short_16: BB56L4DLXTW2UCLS · pith_short_8: BB56L4DL

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/BB56L4DLXTW2UCLSZZ5IWFABR2 \
  | 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: 087be5f06bbcedaa0972ce7a8b14018ea662ddf3eb7a63695fa7d55cbbcaa9d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "804c5a151ac627a7bf994c861ff68f8b0b70be7591b6c8ddbb6f981fec1241f9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-29T16:07:42Z",
    "title_canon_sha256": "6b1999da7790588261cb7a9fc85010d8b448a29b9b6dbf879946e69a77573989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611903",
    "kind": "arxiv",
    "version": 1
  }
}