Pith Number

pith:AVZBTVI3

pith:2003:AVZBTVI3ZJTGGWG6QLT66IQHVR

not attested not anchored not stored refs pending

First-generation black-hole-forming supernovae and the metal abundance pattern of a very iron-poor star

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

arxiv:astro-ph/0301315 v3 · 2003-01-16 · 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{AVZBTVI3ZJTGGWG6QLT66IQHVR}

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	2026-05-18T01:40:39.552900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

057219d51bca666358de82e7ef2207ac598e1957caf8d4da39804a93fc5db87e

Aliases

arxiv: astro-ph/0301315 · arxiv_version: astro-ph/0301315v3 · doi: 10.48550/arxiv.astro-ph/0301315 · pith_short_12: AVZBTVI3ZJTG · pith_short_16: AVZBTVI3ZJTGGWG6 · pith_short_8: AVZBTVI3

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/AVZBTVI3ZJTGGWG6QLT66IQHVR \
  | 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: 057219d51bca666358de82e7ef2207ac598e1957caf8d4da39804a93fc5db87e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d75d2b5538fc48153c246a0098b4a749b38f8e6d24eb4d5be1dc67c92d9328",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-16T06:51:24Z",
    "title_canon_sha256": "b4b5ae141d0abb01cd0890d0b8acb983fcbde318e4c5022f4eb77f1fb40d2ea0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301315",
    "kind": "arxiv",
    "version": 3
  }
}