Pith Number

pith:LCFTEWYM

pith:2020:LCFTEWYMB72YXISY2OGXBYAPU4

not attested not anchored not stored refs pending

A Massive Star's Dying Breaths: Pulsating Red Supergiants and Their Resulting Type IIP Supernovae

Bill Paxton, Jared A. Goldberg, Lars Bildsten

arxiv:2001.07303 v2 · 2020-01-21 · astro-ph.SR · 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{LCFTEWYMB72YXISY2OGXBYAPU4}

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	2026-07-05T00:46:56.982999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

588b325b0c0ff58ba258d38d70e00fa7105448989d7ace4f978e09671cc4ea9e

Aliases

arxiv: 2001.07303 · arxiv_version: 2001.07303v2 · doi: 10.48550/arxiv.2001.07303 · pith_short_12: LCFTEWYMB72Y · pith_short_16: LCFTEWYMB72YXISY · pith_short_8: LCFTEWYM

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/LCFTEWYMB72YXISY2OGXBYAPU4 \
  | 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: 588b325b0c0ff58ba258d38d70e00fa7105448989d7ace4f978e09671cc4ea9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "badefa685c1c94ec8aef01ca8b5e038552625451ed2ab90bdaff91723d2a341a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-01-21T01:23:52Z",
    "title_canon_sha256": "df6926d441d14f41a5100d8e193161b9a82c7655c2428ab6fed25777b8dc607c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.07303",
    "kind": "arxiv",
    "version": 2
  }
}