Pith Number

pith:72KFNGAQ

pith:2020:72KFNGAQ4TBQV5MYA2JMSHVBYX

not attested not anchored not stored refs pending

The Pre-Explosion Mass Distribution of Hydrogen-Poor Superluminous Supernova Progenitors and New Evidence for a Mass-Spin Correlation

(2) Harvard/CfA, (3) University of Birmingham, 4), (4) University of Edinburgh), Edo Berger (2), Matt Nicholl (3, Peter K. Blanchard (1), V. Ashley Villar (2) ((1) Northwestern/CIERA

arxiv:2002.09508 v1 · 2020-02-21 · 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{72KFNGAQ4TBQV5MYA2JMSHVBYX}

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	2026-07-05T01:18:52.081368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe94569810e4c30af5980692c91ea1c5cf6d85b8724d7bd9d02b49dea0bceeb9

Aliases

arxiv: 2002.09508 · arxiv_version: 2002.09508v1 · doi: 10.48550/arxiv.2002.09508 · pith_short_12: 72KFNGAQ4TBQ · pith_short_16: 72KFNGAQ4TBQV5MY · pith_short_8: 72KFNGAQ

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/72KFNGAQ4TBQV5MYA2JMSHVBYX \
  | 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: fe94569810e4c30af5980692c91ea1c5cf6d85b8724d7bd9d02b49dea0bceeb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e00443f203cf4f43fa4c941264977e6acde326bca31dbfd389ae8427425af15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-02-21T19:08:13Z",
    "title_canon_sha256": "5dcb30b4eee6fd3f0738527b272d2883228c83951585659dcd437c9ad797dd54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.09508",
    "kind": "arxiv",
    "version": 1
  }
}