Pith Number

pith:RWAMBGDF

pith:2019:RWAMBGDFU3V3OEIKLDMGNQTIHD

not attested not anchored not stored refs pending

SN 2018fif: The Explosion of a Large Red Supergiant Discovered in Its Infancy by the Zwicky Transient Facility

Adam Rubin, Avishay Gal-Yam, Barak Zackay, Ben Rusholme, Christoffer Fremling, Daniel A. Perley, Eli Waxman, Emir Karamehmetoglu, Eran O. Ofek, Eric C. Bellm, Frank J. Masci, Ido Irani, James D. Neill, Jan van Roestel, Jesper Sollerman, Jonathan Morag, Maayane T. Soumagnac, Mansi M. Kasliwal, Mickael Rigault, Nicholas P Konidaris, Noam Ganot, Ofer Yaron, Peter Nugent, Rachel J. Bruch, Reed Riddle, Richard Dekany, Rick Burruss, Russ R. Laher, S. Bradley Cenko, Shrinivas R. Kulkarni, Steve Schulze, Thomas Kupfer, Virginia Cunningham, V. Zach Golkhou, Yi Yang

arxiv:1907.11252 v2 · 2019-07-25 · 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{RWAMBGDFU3V3OEIKLDMGNQTIHD}

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	2026-07-05T01:43:37.831231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d80c09865a6ebb7110a58d866c26838de0046e51709a9bac13d082d11b9c033

Aliases

arxiv: 1907.11252 · arxiv_version: 1907.11252v2 · doi: 10.48550/arxiv.1907.11252 · pith_short_12: RWAMBGDFU3V3 · pith_short_16: RWAMBGDFU3V3OEIK · pith_short_8: RWAMBGDF

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/RWAMBGDFU3V3OEIKLDMGNQTIHD \
  | 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: 8d80c09865a6ebb7110a58d866c26838de0046e51709a9bac13d082d11b9c033

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "798be172476a3448bd29b76990f84d1cc7a442c743857f17c371cfbcb741e8c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-07-25T18:00:12Z",
    "title_canon_sha256": "4b92dd92224b5818f4ca9033d6946997cf368401e8ec33cefa0efa2f6fe643de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11252",
    "kind": "arxiv",
    "version": 2
  }
}