Pith Number

pith:RLUVJMFX

pith:1999:RLUVJMFX5ZBP3SFHYQPTQUSNS6

not attested not anchored not stored refs pending

B stars as a diagnostic of star-formation at low and high redshift

Claus Leitherer, Duilia F. de Mello, Timothy M. Heckman

arxiv:astro-ph/9909513 v1 · 1999-09-30 · 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{RLUVJMFX5ZBP3SFHYQPTQUSNS6}

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	2026-05-18T01:07:36.018301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ae954b0b7ee42fdc8a7c41f38524d97a7e6140c24de8fdac3a2cad78c2dc3f8

Aliases

arxiv: astro-ph/9909513 · arxiv_version: astro-ph/9909513v1 · doi: 10.48550/arxiv.astro-ph/9909513 · pith_short_12: RLUVJMFX5ZBP · pith_short_16: RLUVJMFX5ZBP3SFH · pith_short_8: RLUVJMFX

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/RLUVJMFX5ZBP3SFHYQPTQUSNS6 \
  | 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: 8ae954b0b7ee42fdc8a7c41f38524d97a7e6140c24de8fdac3a2cad78c2dc3f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2055c10c0b249c2fb1d1fca943670bbef6ecadb2d68ab2e7fadabd1cb18c5912",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-30T17:32:12Z",
    "title_canon_sha256": "5733f3af852de6f7bac3d6a8ae94708c6eade8ef80bf1f0ba44d931b1c6f1e48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909513",
    "kind": "arxiv",
    "version": 1
  }
}