Pith Number

pith:KCVP6HDM

pith:2020:KCVP6HDMHAI5R27B3AT777VDU5

not attested not anchored not stored refs pending

A Gravitational Redshift Measurement of the White Dwarf Mass-Radius Relation

Hsiang-Chih Hwang, Nadia L. Zakamska, Sihao Cheng, Vedant Chandra

arxiv:2007.14517 v2 · 2020-07-28 · astro-ph.SR · 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{KCVP6HDMHAI5R27B3AT777VDU5}

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	2026-07-05T01:30:42.377693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50aaff1c6c3811d8ebe1d827fffea3a771b10161be7db7f606561c8ff1df1714

Aliases

arxiv: 2007.14517 · arxiv_version: 2007.14517v2 · doi: 10.48550/arxiv.2007.14517 · pith_short_12: KCVP6HDMHAI5 · pith_short_16: KCVP6HDMHAI5R27B · pith_short_8: KCVP6HDM

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/KCVP6HDMHAI5R27B3AT777VDU5 \
  | 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: 50aaff1c6c3811d8ebe1d827fffea3a771b10161be7db7f606561c8ff1df1714

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20c3197512a62fd9ac5f8d3564e9f5eb7938e5253f647e25c5ad290b9712260a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-07-28T22:59:48Z",
    "title_canon_sha256": "4d4273ba0c6fd0a3d81b0a714b9921eeb82c8b62cd8eb0e985c79394e485cae1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.14517",
    "kind": "arxiv",
    "version": 2
  }
}