Pith Number

pith:USB7KCO7

pith:2007:USB7KCO7DT6MBKNCGD72AAZADH

not attested not anchored not stored refs pending

Supernova Nucleosynthesis in Population III 13 -- 50 $M_{\odot}$ Stars and Abundance Patterns of Extremely Metal-Poor Stars

Hideyuki Umeda, Ken'ichi Nomoto, Nozomu Tominaga

arxiv:astro-ph/0701381 v2 · 2007-01-12 · 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{USB7KCO7DT6MBKNCGD72AAZADH}

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	2026-05-18T04:29:07.331465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a483f509df1cfcc0a9a230ffa0032019e29c8bd5d864603df4526b9211c8692c

Aliases

arxiv: astro-ph/0701381 · arxiv_version: astro-ph/0701381v2 · doi: 10.48550/arxiv.astro-ph/0701381 · pith_short_12: USB7KCO7DT6M · pith_short_16: USB7KCO7DT6MBKNC · pith_short_8: USB7KCO7

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/USB7KCO7DT6MBKNCGD72AAZADH \
  | 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: a483f509df1cfcc0a9a230ffa0032019e29c8bd5d864603df4526b9211c8692c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43322431cbfe0bee1809ea42d89d27342a28b61ccfc64eeb1d348e9e3b5e0534",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-12T15:56:29Z",
    "title_canon_sha256": "377ab5dba4c0285d1657bb676f3e9a184fada9ad11eee817d800954f118e7444"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701381",
    "kind": "arxiv",
    "version": 2
  }
}