Pith Number

pith:W4LCE7OS

pith:2000:W4LCE7OSOPCT32RHNOMZGZCUUY

not attested not anchored not stored refs pending

Rotation and H-alpha Emission Above and Below the Substellar Boundary

Gibor Basri

arxiv:astro-ph/0009252 v1 · 2000-09-15 · 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{W4LCE7OSOPCT32RHNOMZGZCUUY}

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	2026-05-18T01:07:46.429405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b716227dd273c53dea276b99936454a625046b50051ca8335fe851cf8bf782bb

Aliases

arxiv: astro-ph/0009252 · arxiv_version: astro-ph/0009252v1 · doi: 10.48550/arxiv.astro-ph/0009252 · pith_short_12: W4LCE7OSOPCT · pith_short_16: W4LCE7OSOPCT32RH · pith_short_8: W4LCE7OS

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/W4LCE7OSOPCT32RHNOMZGZCUUY \
  | 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: b716227dd273c53dea276b99936454a625046b50051ca8335fe851cf8bf782bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9edbd187f856e87aa2fdc06d828c41164ea6058bf7cda67bdd18ce90a8a7f14",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-15T18:40:45Z",
    "title_canon_sha256": "05e5bc268623b6065d5ebbe4399979c3168b7e3e9a844ecce36ddb8c1b5d5811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009252",
    "kind": "arxiv",
    "version": 1
  }
}