Pith Number

pith:Y2SY42ZN

pith:1995:Y2SY42ZNEZ4SVZJXPCJQ5UOFOU

not attested not anchored not stored refs pending

Horizontal Branch Stellar Evolution

Ben Dorman (LASP-NASA/GSFC)

arxiv:astro-ph/9511039 v1 · 1995-11-09 · 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{Y2SY42ZNEZ4SVZJXPCJQ5UOFOU}

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	2026-07-04T14:14:38.356251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6a58e6b2d26792ae53778930ed1c5750ccd90381aae22a5a9dd964629f84ea7

Aliases

arxiv: astro-ph/9511039 · arxiv_version: astro-ph/9511039v1 · doi: 10.48550/arxiv.astro-ph/9511039 · pith_short_12: Y2SY42ZNEZ4S · pith_short_16: Y2SY42ZNEZ4SVZJX · pith_short_8: Y2SY42ZN

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/Y2SY42ZNEZ4SVZJXPCJQ5UOFOU \
  | 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: c6a58e6b2d26792ae53778930ed1c5750ccd90381aae22a5a9dd964629f84ea7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f46c25052fe882eddf4b0b5dc210d09d42046707648cc194bf5f543e5a07ad01",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-11-09T18:52:49Z",
    "title_canon_sha256": "5fc899455e6d93eb71a4f321381d34180fc12aff00c57f333ed760d9c14da4f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9511039",
    "kind": "arxiv",
    "version": 1
  }
}