Pith Number

pith:XCR7JOLZ

pith:2016:XCR7JOLZSCZ5E7R5DMBJRGQ2GE

not attested not anchored not stored refs pending

Superluminous supernova progenitors have a half-solar metallicity threshold

C. Inserra, M. Dennefeld, M. Nicholl, P. Schady, R. M. Yates, S. J. Smartt, T. Kr\"uhler, T.-W. Chen

arxiv:1605.04925 v3 · 2016-05-16 · 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{XCR7JOLZSCZ5E7R5DMBJRGQ2GE}

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	2026-05-18T00:39:40.513237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8a3f4b97990b3d27e3d1b02989a1a31220a134bdc804f09074fcb17e247520e

Aliases

arxiv: 1605.04925 · arxiv_version: 1605.04925v3 · doi: 10.48550/arxiv.1605.04925 · pith_short_12: XCR7JOLZSCZ5 · pith_short_16: XCR7JOLZSCZ5E7R5 · pith_short_8: XCR7JOLZ

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/XCR7JOLZSCZ5E7R5DMBJRGQ2GE \
  | 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: b8a3f4b97990b3d27e3d1b02989a1a31220a134bdc804f09074fcb17e247520e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc7f1f33a5490663422dc2915e4d5445234c30550cd8cb769c57f8aaf3a4d47e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-16T20:04:05Z",
    "title_canon_sha256": "d2bba0f85bc00b92b5be6f506ead49622e13286069b3aa8d9c58d6c1a476a6c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04925",
    "kind": "arxiv",
    "version": 3
  }
}