Pith Number

pith:BUAJ525Z

pith:2010:BUAJ525ZSBYWTTVCOG4KH2X2PG

not attested not anchored not stored refs pending

Supernova 2008bk and Its Red Supergiant Progenitor

(10) Las Campanas Obs., (11) Univ. de Chile), (2) HIA/NRC, 3), (3) IEEC/CSIC, (4) MPIfA, (5) Univ. of California, (6) CASA/Univ. of Colorado, 7), (7) Einstein Fellow, (8) Arkansas City, (9) Univ. Andres Bello, Alexei V. Filippenko (5) ((1) Spitzer Science Center/Caltech, Berkeley, Canada, Chile, Emily M. Levesque (6, Garching, Giuliano Pignata (9), KS, Mario Hamuy (11), Nancy Elias-Rosa (1, Nidia Morrell (10), Schuyler D. Van Dyk (1), Spain, Stanley Howerton (8), Stefan Taubenberger (4), Tim J. Davidge (2), Weidong Li (5)

arxiv:1011.5873 v2 · 2010-11-26 · 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{BUAJ525ZSBYWTTVCOG4KH2X2PG}

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	2026-05-18T00:36:33.808327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d009eebb9907169cea271b8a3eafa798c074bcf3687f21a55a80a506f56091a

Aliases

arxiv: 1011.5873 · arxiv_version: 1011.5873v2 · doi: 10.48550/arxiv.1011.5873 · pith_short_12: BUAJ525ZSBYW · pith_short_16: BUAJ525ZSBYWTTVC · pith_short_8: BUAJ525Z

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/BUAJ525ZSBYWTTVCOG4KH2X2PG \
  | 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: 0d009eebb9907169cea271b8a3eafa798c074bcf3687f21a55a80a506f56091a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9f6b2cb6b318e4f5fb385772241ebd3d0d2860b903fe8da55b579cce6e2a5f1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-11-26T20:51:28Z",
    "title_canon_sha256": "3850a32022b22aeef79c987b1f48d563b9a4ed7e590d114bea0e192d7f8473de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.5873",
    "kind": "arxiv",
    "version": 2
  }
}