Pith Number

pith:7LCNHB5E

pith:2018:7LCNHB5EG6SVHZWKWYT3Q4S52F

not attested not anchored not stored refs pending

A UV Resonance Line Echo from a Shell Around a Hydrogen-Poor Superluminous Supernova

A. De Cia, A. Gal-Yam, A. Nyholm, A. Rubin, B. D. Bue, C. Fransson, C. U. Fremling, D. A. Perley, D. O. Cook, F. J. Masci, G. Leloudas, Lin Yan, M. M. Kasliwal, N. Blagorodnova, N. Suzuki, P. E. Nugent, P. Gatkine, P. M. Vreeswijk, P. Wozniak, R. Lunnan, R. M. Quimby, S. B. Cenko, S. E. Woosley, S. R. Kulkarni

arxiv:1808.04887 v2 · 2018-08-14 · 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{7LCNHB5EG6SVHZWKWYT3Q4S52F}

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	2026-05-18T00:07:48.792548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fac4d387a437a553e6cab627b8725dd16e31938f18014a25383109e305351755

Aliases

arxiv: 1808.04887 · arxiv_version: 1808.04887v2 · doi: 10.48550/arxiv.1808.04887 · pith_short_12: 7LCNHB5EG6SV · pith_short_16: 7LCNHB5EG6SVHZWK · pith_short_8: 7LCNHB5E

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/7LCNHB5EG6SVHZWKWYT3Q4S52F \
  | 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: fac4d387a437a553e6cab627b8725dd16e31938f18014a25383109e305351755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a50f62fcaf2cc95576914fd1744fb2178689d5e267670f5ef63c38a307924322",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-14T20:34:06Z",
    "title_canon_sha256": "ad88ec3b3a47ddaf8f8c0eb9ce129c89486891fc9cfc47f7277c253da98c307e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04887",
    "kind": "arxiv",
    "version": 2
  }
}