Pith Number

pith:QQF4OR5N

pith:2023:QQF4OR5NXGVBFAQX65BIABSTO2

not attested not anchored not stored refs pending

The Progenitor Star of SN 2023ixf: A Massive Red Supergiant with Enhanced, Episodic Pre-Supernova Mass Loss

Avishay Gal-Yam, Christoffer Fremling, Daniel A. Perley, Erez A. Zimmerman, Ido Irani, Jesper Sollerman, Joshua Bloom, Keming Zhang, Mansi Kasliwal, Michael W. Coughlin, Shrinivas Kulkarni, Steve Schulze, Yu-Jing Qin

arxiv:2309.10022 v1 · 2023-09-18 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQF4OR5NXGVBFAQX65BIABSTO2}

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	2026-07-05T06:51:49.898392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840bc747adb9aa128217f74280065376bf728bf0cce1cff09d57d2ba290c18fa

Aliases

arxiv: 2309.10022 · arxiv_version: 2309.10022v1 · doi: 10.48550/arxiv.2309.10022 · pith_short_12: QQF4OR5NXGVB · pith_short_16: QQF4OR5NXGVBFAQX · pith_short_8: QQF4OR5N

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/QQF4OR5NXGVBFAQX65BIABSTO2 \
  | 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: 840bc747adb9aa128217f74280065376bf728bf0cce1cff09d57d2ba290c18fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "608c408a6adbf3cfef504720cf26fc74c4016e5408961de6bd2c5ba4d6193428",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-09-18T18:00:00Z",
    "title_canon_sha256": "d12f686f7592f702c9923c8a92b477d3c8ed23092451603d5ce5e5a4ec34f66b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.10022",
    "kind": "arxiv",
    "version": 1
  }
}