Pith Number

pith:KZVEQCTH

pith:2012:KZVEQCTHJO5UJTQXC22HIFYTDL

not attested not anchored not stored refs pending

Berkeley Supernova Ia Program II: Initial Analysis of Spectra Obtained Near Maximum Brightness

Alexei V. Filippenko, Jason J. Kong, Jeffrey M. Silverman

arxiv:1202.2129 v2 · 2012-02-09 · 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{KZVEQCTHJO5UJTQXC22HIFYTDL}

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	2026-05-18T01:58:31.515432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

566a480a674bbb44ce1716b47417131af13bcf94994fd2b26c304ffe63eb5d43

Aliases

arxiv: 1202.2129 · arxiv_version: 1202.2129v2 · doi: 10.48550/arxiv.1202.2129 · pith_short_12: KZVEQCTHJO5U · pith_short_16: KZVEQCTHJO5UJTQX · pith_short_8: KZVEQCTH

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/KZVEQCTHJO5UJTQXC22HIFYTDL \
  | 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: 566a480a674bbb44ce1716b47417131af13bcf94994fd2b26c304ffe63eb5d43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ede93355956de37d065c585d66c580fa06f9368e7127b037c5bf3b0e4ce45a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-09T21:05:51Z",
    "title_canon_sha256": "6223406cc89690db44583fbc28059dba1344e48c2a592df9ddccd1c9a44a6378"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2129",
    "kind": "arxiv",
    "version": 2
  }
}