Pith Number

pith:D7NYKO4P

pith:2018:D7NYKO4PNIND2YJOXPQDDLB43Y

not attested not anchored not stored refs pending

The sdA problem I: Physical Properties

D. Koester, Ingrid Pelisoli, S. O. Kepler

arxiv:1801.00495 v1 · 2018-01-01 · 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{D7NYKO4PNIND2YJOXPQDDLB43Y}

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

Shaping the horizontal branch: The role of envelope mass in the evolution of stripped core-helium-burning stars

Receipt and verification

First computed	2026-05-18T00:25:15.481239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fdb853b8f6a1a3d612ebbe031ac3cde2af27befac83c6cf238985a9557c6234

Aliases

arxiv: 1801.00495 · arxiv_version: 1801.00495v1 · doi: 10.48550/arxiv.1801.00495 · pith_short_12: D7NYKO4PNIND · pith_short_16: D7NYKO4PNIND2YJO · pith_short_8: D7NYKO4P

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/D7NYKO4PNIND2YJOXPQDDLB43Y \
  | 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: 1fdb853b8f6a1a3d612ebbe031ac3cde2af27befac83c6cf238985a9557c6234

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a55657da39459536cf5b4ef52ac7f5dbb2b9808f0cef221afdf71041c6a5597",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-01T19:00:25Z",
    "title_canon_sha256": "f7d10294e53f260f75049b2901ae28dd3a7c720d19cb9987fc10285e25f37e1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00495",
    "kind": "arxiv",
    "version": 1
  }
}