Pith Number

pith:CZEB2OYM

pith:2001:CZEB2OYMVLVOTRAXZ6A7A22CGU

not attested not anchored not stored refs pending

Nucleosynthesis of Zinc and Iron-Peak Elements in Pop III Type II Supernovae : Comparison with abundances of Very Metal-Poor Halo Stars

Hideyuki Umeda, Ken'ichi Nomoto (Univ. of Tokyo)

arxiv:astro-ph/0103241 v4 · 2001-03-15 · 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{CZEB2OYMVLVOTRAXZ6A7A22CGU}

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	2026-05-18T04:29:05.258525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16481d3b0caaeae9c417cf81f06b42353905a4f4a29c55cf656be674c738bde1

Aliases

arxiv: astro-ph/0103241 · arxiv_version: astro-ph/0103241v4 · doi: 10.48550/arxiv.astro-ph/0103241 · pith_short_12: CZEB2OYMVLVO · pith_short_16: CZEB2OYMVLVOTRAX · pith_short_8: CZEB2OYM

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/CZEB2OYMVLVOTRAXZ6A7A22CGU \
  | 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: 16481d3b0caaeae9c417cf81f06b42353905a4f4a29c55cf656be674c738bde1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f5dc0ffa97d31af2e571eefae146dd9fa2d09fb0a484c1ccaf720bb88371ca6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-15T15:46:30Z",
    "title_canon_sha256": "8b1d5dcc5bac51ce0aff4cc372a8a6ad9a2ac3584068241db4d6e2e88a0ea922"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103241",
    "kind": "arxiv",
    "version": 4
  }
}