Pith Number

pith:ZSSR7JTK

pith:2009:ZSSR7JTKIUGPQB5SO635XXXWC6

not attested not anchored not stored refs pending

Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415

12), 13), 4, 6), Andrea Pastorello (1), Arkady A. Arkharov (5, Arno Riffeser (11), Carrie Trundle (1), Christoph Ries (11), Deborah J. Hunter (1), Dmitrii Y. Tsvetkov (15), Elisa Di Carlo (7), Enrico Cappellaro (7), Hawaii (15) Sternberg Astronomical Institute), Hripsime Navasardyan (4), Johan U. Fynbo (10), Luca Rizzi (14), Massimo Turatto (4), Mauro Dolci (7), Milena Bufano (7), Nancy Elias-Rosa (8), Paolo Mazzali (3, Peter Laursen (10), Peter Meikle (2), Pisa (14) JAC, Rubina Kotak (1), Silona Wilke (11) ((1) Queen's University Belfast, Soeren Frandsen (9), Stefano Benetti (4), Stefano Valenti (1), Stefan Taubenberger (3), Steven J. Smartt (1), UK (2) Imperial College London, UK (3) MPA Garching (4) INAF Padova (5) Pulkovo Central Astronomical Observatory (6) Astronomical Institute of St Petersburg (7) INAF Teramo (8) Spitzer Science Centre (9) Arhus University (10) Dark Cosmology Centre (11) University of Munich (12) MPE Garching (13) Scuola Normale Superiore, Ulrich Hopp (11, Valeri M. Larionov (5, Vallery Stanishev (4)

arxiv:0909.3780 v1 · 2009-09-21 · 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{ZSSR7JTKIUGPQB5SO635XXXWC6}

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	2026-05-18T02:11:45.792167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cca51fa66a450cf807b277b7dbdef617a81391712732839609e1e69571cfc545

Aliases

arxiv: 0909.3780 · arxiv_version: 0909.3780v1 · doi: 10.48550/arxiv.0909.3780 · pith_short_12: ZSSR7JTKIUGP · pith_short_16: ZSSR7JTKIUGPQB5S · pith_short_8: ZSSR7JTK

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/ZSSR7JTKIUGPQB5SO635XXXWC6 \
  | 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: cca51fa66a450cf807b277b7dbdef617a81391712732839609e1e69571cfc545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b59578f90213da447a2f1699722c9910a83ef520e3b3eab31d111295cb5b2089",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-21T17:21:58Z",
    "title_canon_sha256": "bb20b455819ac71e68901606e4b9630f9babcdcf9e0d625946ff7a6bfff1db31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3780",
    "kind": "arxiv",
    "version": 1
  }
}