Pith Number

pith:ZRV4WB2T

pith:2014:ZRV4WB2TDPRHSPQNU3T5C2CO44

not attested not anchored not stored refs pending

Early-time spectra of supernovae and their precursor winds: the luminous blue variable/yellow hypergiant progenitor of SN 2013cu

Jose H. Groh (Geneva Observatory)

arxiv:1408.5397 v1 · 2014-08-22 · 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{ZRV4WB2TDPRHSPQNU3T5C2CO44}

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

JWST observations of SN 2024abup: First Detection of CO in a broad-lined Type Ic Supernova and Constraints on r-process Nucleosynthesis

Receipt and verification

First computed	2026-05-18T02:31:46.814423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc6bcb07531be2793e0da6e7d1684ee7126a1a422d2acd6891a709a769ab1b91

Aliases

arxiv: 1408.5397 · arxiv_version: 1408.5397v1 · doi: 10.48550/arxiv.1408.5397 · pith_short_12: ZRV4WB2TDPRH · pith_short_16: ZRV4WB2TDPRHSPQN · pith_short_8: ZRV4WB2T

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/ZRV4WB2TDPRHSPQNU3T5C2CO44 \
  | 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: cc6bcb07531be2793e0da6e7d1684ee7126a1a422d2acd6891a709a769ab1b91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67ab4303ed605756190ec97e0a2118a6e4da05f5258651c16d765be68aa9faf6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-08-22T19:39:21Z",
    "title_canon_sha256": "deb23e633b7c8629ea616be57b8188a0c34c8f2507dcc6f5c31f7dee7f6287bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5397",
    "kind": "arxiv",
    "version": 1
  }
}