Pith Number

pith:7X7FF3X7

pith:2012:7X7FF3X7OLSUNY32YTLRYUXNWA

not attested not anchored not stored refs pending

Blue supergiant progenitor models of Type II supernovae

C. De Loore, D. Vanbeveren, N. Mennekens, W. Van Rensbergen

arxiv:1212.4285 v2 · 2012-12-18 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7X7FF3X7OLSUNY32YTLRYUXNWA}

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	2026-05-18T03:28:17.270255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdfe52eeff72e546e37ac4d71c52edb005c50079c3c18cd9a9a5dc1d7c9fe326

Aliases

arxiv: 1212.4285 · arxiv_version: 1212.4285v2 · doi: 10.48550/arxiv.1212.4285 · pith_short_12: 7X7FF3X7OLSU · pith_short_16: 7X7FF3X7OLSUNY32 · pith_short_8: 7X7FF3X7

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/7X7FF3X7OLSUNY32YTLRYUXNWA \
  | 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: fdfe52eeff72e546e37ac4d71c52edb005c50079c3c18cd9a9a5dc1d7c9fe326

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f5d727530b04280ec71639d0fd5aa9a2d7104e1fbdca19765c6853d1779ad89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-18T09:55:21Z",
    "title_canon_sha256": "ae77c1e445d21ab79dedab607dbbefdea8955875608b7535ba5fb371d5eeaf82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4285",
    "kind": "arxiv",
    "version": 2
  }
}