Pith Number

pith:3R76Y4M4

pith:2006:3R76Y4M4XHF3WD7XLAUT77UC6Y

not attested not anchored not stored refs pending

Stellar evolution of massive stars at very low metallicities

C. Fr\"ohlich, F.-K. Thielemann, M. Liebend\"orfer, R. Hirschi

arxiv:astro-ph/0601502 v1 · 2006-01-23 · 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{3R76Y4M4XHF3WD7XLAUT77UC6Y}

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	2026-05-18T01:59:33.877068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc7fec719cb9cbbb0ff758293ffe82f6068d3194adc1f42e14c9db480c346468

Aliases

arxiv: astro-ph/0601502 · arxiv_version: astro-ph/0601502v1 · doi: 10.48550/arxiv.astro-ph/0601502 · pith_short_12: 3R76Y4M4XHF3 · pith_short_16: 3R76Y4M4XHF3WD7X · pith_short_8: 3R76Y4M4

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/3R76Y4M4XHF3WD7XLAUT77UC6Y \
  | 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: dc7fec719cb9cbbb0ff758293ffe82f6068d3194adc1f42e14c9db480c346468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e648c55e50c5ae23ac515597d1a926a3ed6f53504caf64b7a1e7ef6b00009a96",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-23T12:41:41Z",
    "title_canon_sha256": "6a93f944b9d9847d328a5c495ef3d85a6b432e5b469c3533177174020b150149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601502",
    "kind": "arxiv",
    "version": 1
  }
}