Pith Number

pith:WEFKPP4H

pith:2015:WEFKPP4H5OFKBMUTVF4SEJGEMR

not attested not anchored not stored refs pending

SN 2013ej in M74: A Luminous and Fast-declining Type II-P Supernova

Fang Huang, Jujia Zhang, Juncheng Chen, Jun Mo, Luca Zampieri, Maria Letizia Pumo, Peter J. Brown, Tianmeng Zhang, Xiaofeng Wang, Xulin Zhao

arxiv:1504.00446 v1 · 2015-04-02 · 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{WEFKPP4H5OFKBMUTVF4SEJGEMR}

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	2026-05-18T02:19:43.294303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b10aa7bf87eb8aa0b293a9792224c46469fe7784447def124d047e3a7c01aeac

Aliases

arxiv: 1504.00446 · arxiv_version: 1504.00446v1 · doi: 10.48550/arxiv.1504.00446 · pith_short_12: WEFKPP4H5OFK · pith_short_16: WEFKPP4H5OFKBMUT · pith_short_8: WEFKPP4H

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/WEFKPP4H5OFKBMUTVF4SEJGEMR \
  | 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: b10aa7bf87eb8aa0b293a9792224c46469fe7784447def124d047e3a7c01aeac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb75ef8bbf5757cc8d1ebc494b0757d530ad40ff1de247b7e79f7c5cf119d0a1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-02T04:52:45Z",
    "title_canon_sha256": "9734c84e31d9217f5977497a7d824213aa634d1b9ffb242ac072a29d2b88e743"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00446",
    "kind": "arxiv",
    "version": 1
  }
}