Pith Number

pith:BXCZBU2S

pith:2020:BXCZBU2SAFXFYMPECJJPB43OT4

not attested not anchored not stored refs pending

Berkeley Supernova Ia Program: Data Release of 637 Spectra from 247 Type Ia Supernovae

Alexei V. Filippenko, Benjamin E. Stahl, Bethany E. Cobb, Goni Halevi, Heechan Yuk, Io Kleiser, Isaac Shivvers, Jason J. Kong, Jeffrey M. Silverman, Jon C. Mauerhan, Kelsey I. Clubb, Melissa L. Graham, Michael T. Kandrashoff, Ori D. Fox, Patrick L. Kelly, S. Bradley Cenko, Thomas de Jaeger, Thomas G. Brink, Weikang Zheng, Xianggao Wang, Xiaofeng Wang

arxiv:2001.03235 v1 · 2020-01-09 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BXCZBU2SAFXFYMPECJJPB43OT4}

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	2026-07-05T00:34:51.939984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dc590d352016e5c31e41252f0f36e9f26caf4fb70ce40d7a5205df868bf1457

Aliases

arxiv: 2001.03235 · arxiv_version: 2001.03235v1 · doi: 10.48550/arxiv.2001.03235 · pith_short_12: BXCZBU2SAFXF · pith_short_16: BXCZBU2SAFXFYMPE · pith_short_8: BXCZBU2S

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/BXCZBU2SAFXFYMPECJJPB43OT4 \
  | 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: 0dc590d352016e5c31e41252f0f36e9f26caf4fb70ce40d7a5205df868bf1457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab13799a4249d69251736a4551c6bdd2c61d4549f16346e72dc20d1c0878a207",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-01-09T21:59:37Z",
    "title_canon_sha256": "b3ad6419cc9f4d8165124fe34d1fbd7ab6460742bb0da23aaad6b0f2c335c628"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.03235",
    "kind": "arxiv",
    "version": 1
  }
}