Pith Number

pith:QRE4HUXR

pith:2019:QRE4HUXRPCZ2LCIQ6XJQDCRFUJ

not attested not anchored not stored refs pending

Nebular Spectra of 111 Type Ia Supernovae Disfavor Single Degenerate Progenitors

B. J. Shappee, C. S. Kochanek, E. Y. Hsiao, H. Kuncarayakti, J. Botyanszki, J. Brown, J. P. Anderson, J. Prieto, K. Z. Stanek, L. Galbany, M. A. Tucker, M. D. Stritzinger, M. M. Phillips, N. Morrell, P. J. Vallely, S. Kumar, Todd A. Thompson, T. W.-S. Holoien

arxiv:1903.05115 v3 · 2019-03-12 · 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{QRE4HUXRPCZ2LCIQ6XJQDCRFUJ}

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.

Cited by

1 paper in Pith

The type Ia supernova 2023vjh: a peculiar 1991bg-like SN with unusually faint light curves

Receipt and verification

First computed	2026-07-05T00:30:02.975098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8449c3d2f178b3a58910f5d3018a25a246c90acd28f396bbd31e6608663aadb9

Aliases

arxiv: 1903.05115 · arxiv_version: 1903.05115v3 · doi: 10.48550/arxiv.1903.05115 · pith_short_12: QRE4HUXRPCZ2 · pith_short_16: QRE4HUXRPCZ2LCIQ · pith_short_8: QRE4HUXR

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/QRE4HUXRPCZ2LCIQ6XJQDCRFUJ \
  | 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: 8449c3d2f178b3a58910f5d3018a25a246c90acd28f396bbd31e6608663aadb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8592a68bdb1e00276d0606e80c6dd9aa7b0ab5cefef8db4ece04e9262e8935a3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-03-12T18:03:53Z",
    "title_canon_sha256": "19dfe81fdbdf54f8efc023e033a6ad645a25bf023554e9c7a5a2e8504bf136d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05115",
    "kind": "arxiv",
    "version": 3
  }
}