Pith Number

pith:6KIBYCHR

pith:2010:6KIBYCHRQ2WQB23J7PBFEUIRXJ

not attested not anchored not stored refs pending

The Subluminous Supernova 2007qd: A Missing Link in a Family of Low-Luminosity Type Ia Supernovae

Alexei V. Filippenko, Ariel Goobar, Bruce Bassett, Colin M. McClelland, Donald P. Schneider, J. Craig Wheeler, Jesper Sollerman, Joshua A. Frieman, Jozsef Vinko, Llu\'is Galbany, Masao Sako, Peter M. Garnavich, Ramon Miquel, Ryan J. Foley, Saurabh W. Jha

arxiv:1007.2850 v1 · 2010-07-16 · 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{6KIBYCHRQ2WQB23J7PBFEUIRXJ}

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	2026-05-18T03:32:57.534172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2901c08f186ad00eb69fbc2525111ba7786842f116ee4d29bb1815ad92db909

Aliases

arxiv: 1007.2850 · arxiv_version: 1007.2850v1 · doi: 10.48550/arxiv.1007.2850 · pith_short_12: 6KIBYCHRQ2WQ · pith_short_16: 6KIBYCHRQ2WQB23J · pith_short_8: 6KIBYCHR

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/6KIBYCHRQ2WQB23J7PBFEUIRXJ \
  | 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: f2901c08f186ad00eb69fbc2525111ba7786842f116ee4d29bb1815ad92db909

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7218062f06171bac45e402ba3559ab4f561dc3bf8e83e4a87cfa44a63fac71e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-16T20:01:04Z",
    "title_canon_sha256": "e6c9b2bdb3ee6797b9031edc8342bd74adbebff2fa747474451192e305ca2022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2850",
    "kind": "arxiv",
    "version": 1
  }
}