Pith Number

pith:AZTW4AGZ

pith:2012:AZTW4AGZPE355JBLWT2JYSXPTL

not attested not anchored not stored refs pending

A Gravitational Redshift Determination of the Mean Mass of White Dwarfs. DBA and DB Stars

D. E. Winget, Kurtis A. Williams, Michael H. Montgomery, Ross E. Falcon

arxiv:1208.2009 v1 · 2012-08-09 · 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{AZTW4AGZPE355JBLWT2JYSXPTL}

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	2026-05-18T02:59:06.531126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06676e00d97937dea42bb4f49c4aef9af72cc891a2439ac8b754c862f60e0f43

Aliases

arxiv: 1208.2009 · arxiv_version: 1208.2009v1 · doi: 10.48550/arxiv.1208.2009 · pith_short_12: AZTW4AGZPE35 · pith_short_16: AZTW4AGZPE355JBL · pith_short_8: AZTW4AGZ

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/AZTW4AGZPE355JBLWT2JYSXPTL \
  | 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: 06676e00d97937dea42bb4f49c4aef9af72cc891a2439ac8b754c862f60e0f43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b6b7ac280ad1bc2822185012e76590098b4cccc9ebe317a316f0105a4b0b16c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-09T19:15:49Z",
    "title_canon_sha256": "b7212ed91461205657177ac2c0214e2a6d1bd2323a973174fb020aa1ce0fcbcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2009",
    "kind": "arxiv",
    "version": 1
  }
}