Pith Number

pith:ZXZYJ4TS

pith:2020:ZXZYJ4TSCGDB24XRHLB4D5AXVR

not attested not anchored not stored refs pending

Spectroscopic Detection of the Pre-White Dwarf Companion of Regulus

Andrew Couperus, Coralie Neiner, David W. Dunham, Douglas R. Gies, Gregg A. Wade, Joan B. Dunham, Katherine Shepard, Kathryn V. Lester, Luqian Wang

arxiv:2009.02409 v1 · 2020-09-04 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXZYJ4TSCGDB24XRHLB4D5AXVR}

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

White dwarfs within 13 pc: Insights from ultraviolet spectroscopy

Receipt and verification

First computed	2026-07-05T01:42:45.118446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdf384f27211861d72f13ac3c1f417ac62b41d10b0fee32f2b59d9e3484a6f74

Aliases

arxiv: 2009.02409 · arxiv_version: 2009.02409v1 · doi: 10.48550/arxiv.2009.02409 · pith_short_12: ZXZYJ4TSCGDB · pith_short_16: ZXZYJ4TSCGDB24XR · pith_short_8: ZXZYJ4TS

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/ZXZYJ4TSCGDB24XRHLB4D5AXVR \
  | 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: cdf384f27211861d72f13ac3c1f417ac62b41d10b0fee32f2b59d9e3484a6f74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "310b97b8e079ff69d6ed71b90aa6f022ff204a1df373eb009a642889659e6161",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-04T22:19:29Z",
    "title_canon_sha256": "873f5ef9b078aaaefa61d3728b694bb9a3e44e3ee9ced4ff291ce7a3e3a922fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.02409",
    "kind": "arxiv",
    "version": 1
  }
}