Pith Number

pith:YRUGKL3W

pith:2016:YRUGKL3WDNSHPEB5U3VR5HUEJY

not attested not anchored not stored refs pending

Stripped red giants - Helium core white dwarf progenitors and their sdB siblings

Ulrich Heber

arxiv:1610.07516 v1 · 2016-10-24 · 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{YRUGKL3WDNSHPEB5U3VR5HUEJY}

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	2026-05-18T01:01:29.914010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c468652f761b6477903da6eb1e9e844e22c44a003f6a002daa0417571259cc58

Aliases

arxiv: 1610.07516 · arxiv_version: 1610.07516v1 · doi: 10.48550/arxiv.1610.07516 · pith_short_12: YRUGKL3WDNSH · pith_short_16: YRUGKL3WDNSHPEB5 · pith_short_8: YRUGKL3W

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/YRUGKL3WDNSHPEB5U3VR5HUEJY \
  | 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: c468652f761b6477903da6eb1e9e844e22c44a003f6a002daa0417571259cc58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eb7f394080d9b58956ccc2ff577f808c11c9ce20a0c8f7ffd74654e1cf799da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-10-24T18:05:58Z",
    "title_canon_sha256": "8aa4ef2cd8ff19a0299552515ff99c437e0bc863a66941610cc24a5b2b905b59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.07516",
    "kind": "arxiv",
    "version": 1
  }
}