Pith Number

pith:RE4INFXD

pith:2015:RE4INFXD2H5N637JQVUYRLFE5E

not attested not anchored not stored refs pending

Type IIb Supernova 2013df Entering Into An Interaction Phase: A Link between the Progenitor and the Mass Loss

A. Kamble, A. Soderberg, A. Suzuki, A. Tajitsu, D. Milisavljevic, G. Folatelli, H. Kuncarayakti, I. Sakon, J.D. Simon, J.H. Kim, J. Parrent, K. Maeda, K. Nomoto, K.S. Kawabata, K. Takaki, M. Ishigaki, M. Iye, M. Kawabata, M.M. Phillips, M.R. Drout, M. Tanaka, M. Yamanaka, R. Margutti, T. Hattori, T.J. Moriya, T. Nakaoka

arxiv:1504.06668 v2 · 2015-04-24 · 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{RE4INFXD2H5N637JQVUYRLFE5E}

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	2026-05-18T02:03:32.423713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89388696e3d1fadf6fe9856988aca4e918cae7cfe331bede2ffd524794d02e48

Aliases

arxiv: 1504.06668 · arxiv_version: 1504.06668v2 · doi: 10.48550/arxiv.1504.06668 · pith_short_12: RE4INFXD2H5N · pith_short_16: RE4INFXD2H5N637J · pith_short_8: RE4INFXD

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/RE4INFXD2H5N637JQVUYRLFE5E \
  | 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: 89388696e3d1fadf6fe9856988aca4e918cae7cfe331bede2ffd524794d02e48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b46962b1b23efc07eb040af4583d06443019c372dba86f9bf39e8efff8168f5a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-24T23:41:19Z",
    "title_canon_sha256": "0969bac53969f506d2b767bc0f22300f92cabebd0250597d1caf32c44b681d3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06668",
    "kind": "arxiv",
    "version": 2
  }
}