Pith Number

pith:T7PRLAJQ

pith:2021:T7PRLAJQW57NTO6A22ZPPROBTP

not attested not anchored not stored refs pending

A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn

B. J. Shappee, C. Ashall, C. R. Burns, D. R. Young, E. Baron, E. Y. Hsiao, F. Taddia, J. D. Lyman, J. Lu, L. Galbany, M. Delgado Mancheno, M. D. Stritzinger, M. M. Phillips, N. B. Suntzeff, N. Morrell, P. A. Mazzali, R. Gonzalez Diaz, S. Benetti, S. Holmbo, S. Munoz Torres, W. B. Hoogendam

arxiv:2109.14644 v2 · 2021-09-29 · astro-ph.HE · 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{T7PRLAJQW57NTO6A22ZPPROBTP}

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	2026-07-05T04:11:49.167595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fdf158130b77ed9bbc0d6b2f7c5c19bf5872055adb5f4d9230e8526da0c0ee3

Aliases

arxiv: 2109.14644 · arxiv_version: 2109.14644v2 · doi: 10.48550/arxiv.2109.14644 · pith_short_12: T7PRLAJQW57N · pith_short_16: T7PRLAJQW57NTO6A · pith_short_8: T7PRLAJQ

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/T7PRLAJQW57NTO6A22ZPPROBTP \
  | 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: 9fdf158130b77ed9bbc0d6b2f7c5c19bf5872055adb5f4d9230e8526da0c0ee3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cd16f5d47d0b60bf6c9dfa4923069c6a114886d8a4837c761dbe29cfee0af5b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-09-29T18:05:10Z",
    "title_canon_sha256": "710c6b575755078a57fd78ac952f6af120a66b65f70f917810ebb4fb2d72cf29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.14644",
    "kind": "arxiv",
    "version": 2
  }
}