Pith Number

pith:C2GHA5XM

pith:2019:C2GHA5XMW4N3MN3EILDWHHNP3C

not attested not anchored not stored refs pending

The white dwarf mass-radius relation and its dependence on the hydrogen envelope

A. H. C\'orsico, Alejandra D. Romero, G. R. Lauffer, S. O. Kepler, S. R. G. Joyce

arxiv:1901.04644 v2 · 2019-01-15 · 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{C2GHA5XMW4N3MN3EILDWHHNP3C}

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	2026-05-17T23:49:32.935104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

168c7076ecb71bb6376442c7639dafd8a28e283106d616bb17e9f8be2f27593a

Aliases

arxiv: 1901.04644 · arxiv_version: 1901.04644v2 · doi: 10.48550/arxiv.1901.04644 · pith_short_12: C2GHA5XMW4N3 · pith_short_16: C2GHA5XMW4N3MN3E · pith_short_8: C2GHA5XM

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/C2GHA5XMW4N3MN3EILDWHHNP3C \
  | 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: 168c7076ecb71bb6376442c7639dafd8a28e283106d616bb17e9f8be2f27593a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "542c1571d34fc16c573a1309c585cc5848af6689d68d314a873fbdce1797778f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-15T03:24:25Z",
    "title_canon_sha256": "a3f40d9f068ab420dfdeab00c1401c80dcabfdb1f6e41a4b5a96596d21953c34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04644",
    "kind": "arxiv",
    "version": 2
  }
}