Pith Number

pith:WHQBYCPL

pith:2019:WHQBYCPLYROL42UPCEC7ZMBJWM

not attested not anchored not stored refs pending

Evolution of Helium Star - White Dwarf Binaries Leading up to Thermonuclear Supernovae

Josiah Schwab, Tin Long Sunny Wong

arxiv:1901.04512 v2 · 2019-01-14 · 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{WHQBYCPLYROL42UPCEC7ZMBJWM}

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	2026-05-17T23:42:24.687334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1e01c09ebc45cbe6a8f1105fcb029b306ea021b15a85f4e75841a7a93f9df57

Aliases

arxiv: 1901.04512 · arxiv_version: 1901.04512v2 · doi: 10.48550/arxiv.1901.04512 · pith_short_12: WHQBYCPLYROL · pith_short_16: WHQBYCPLYROL42UP · pith_short_8: WHQBYCPL

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/WHQBYCPLYROL42UPCEC7ZMBJWM \
  | 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: b1e01c09ebc45cbe6a8f1105fcb029b306ea021b15a85f4e75841a7a93f9df57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4592065fbd0de02665811790ef8d7c76de8b8906765de30f793dba1f605e615",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-14T19:00:07Z",
    "title_canon_sha256": "69e759f2d085df08f6af52db79cc631f92f309960f2cb51cf632792279dc9227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04512",
    "kind": "arxiv",
    "version": 2
  }
}