Pith Number

pith:FMZ6ELMQ

pith:2020:FMZ6ELMQYOCYZFCH2R5YC7XQS4

not attested not anchored not stored refs pending

The `Red Supergiant Problem': the upper luminosity boundary of type-II supernova progenitors

Ben Davies, Emma R. Beasor

arxiv:2001.06020 v1 · 2020-01-16 · astro-ph.SR · astro-ph.GA · 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{FMZ6ELMQYOCYZFCH2R5YC7XQS4}

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

Neutrino Flavor Conversion Shapes the Rate of Failed Core-collapse Supernovae

Receipt and verification

First computed	2026-07-05T00:36:46.839288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b33e22d90c3858c9447d47b817ef09738f01b0c95ef638c815e9fa0c00aa32f

Aliases

arxiv: 2001.06020 · arxiv_version: 2001.06020v1 · doi: 10.48550/arxiv.2001.06020 · pith_short_12: FMZ6ELMQYOCY · pith_short_16: FMZ6ELMQYOCYZFCH · pith_short_8: FMZ6ELMQ

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/FMZ6ELMQYOCYZFCH2R5YC7XQS4 \
  | 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: 2b33e22d90c3858c9447d47b817ef09738f01b0c95ef638c815e9fa0c00aa32f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9ce4d39b7ea17ec5e13a6ae9a93a0be406183bfe025cbdf285d0512a6ce8618",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-01-16T19:00:18Z",
    "title_canon_sha256": "c6c5003eec75ec942ffdf52be0c578f1137f0ce3a2dcb54f12ca20fde6bdf937"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.06020",
    "kind": "arxiv",
    "version": 1
  }
}