Pith Number

pith:BKCDNLUM

pith:2013:BKCDNLUMSLORRXNJTFIS23WKX4

not attested not anchored not stored refs pending

The death of massive stars - II. Observational constraints on the progenitors of type Ibc supernovae

John J. Eldridge, Justyn R. Maund, Morgan Fraser, R. Mark Crockett, Stephen J. Smartt

arxiv:1301.1975 v3 · 2013-01-09 · astro-ph.SR · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKCDNLUMSLORRXNJTFIS23WKX4}

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	2026-05-18T01:52:14.215646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a8436ae8c92dd18dda999512d6ecabf0f4687fd2fb3b486943c3775cceedf0c

Aliases

arxiv: 1301.1975 · arxiv_version: 1301.1975v3 · doi: 10.48550/arxiv.1301.1975 · pith_short_12: BKCDNLUMSLOR · pith_short_16: BKCDNLUMSLORRXNJ · pith_short_8: BKCDNLUM

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/BKCDNLUMSLORRXNJTFIS23WKX4 \
  | 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: 0a8436ae8c92dd18dda999512d6ecabf0f4687fd2fb3b486943c3775cceedf0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e03ae768baf4694220ea4cd0bcb7f0cb9f9c72f312018ab1166a20a9bdec6ed",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-09T21:00:01Z",
    "title_canon_sha256": "33ec99c6dba68d2de67d58f95fe5fb6c25c185f1ea410c63c4239f3812d89393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1975",
    "kind": "arxiv",
    "version": 3
  }
}