Pith Number

pith:GP4JWWO7

pith:2018:GP4JWWO7XHKOEMNFNBG2NTCEQP

not attested not anchored not stored refs pending

$\alpha$ Centauri A as a potential stellar model calibrator: establishing the nature of its core

B. Nsamba, M. J. P. F. G. Monteiro, M. S. Cunha, S. G. Sousa, T. L. Campante

arxiv:1805.09103 v2 · 2018-05-23 · 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{GP4JWWO7XHKOEMNFNBG2NTCEQP}

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	2026-05-18T00:14:13.520018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33f89b59dfb9d4e231a5684da6cc4483d41d068149581fa07d87dd5dcd987055

Aliases

arxiv: 1805.09103 · arxiv_version: 1805.09103v2 · doi: 10.48550/arxiv.1805.09103 · pith_short_12: GP4JWWO7XHKO · pith_short_16: GP4JWWO7XHKOEMNF · pith_short_8: GP4JWWO7

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/GP4JWWO7XHKOEMNFNBG2NTCEQP \
  | 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: 33f89b59dfb9d4e231a5684da6cc4483d41d068149581fa07d87dd5dcd987055

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9b667ea65b8ef472f393ab6c5c6ca0d81d9ff28906ca3ef914232d6de72338",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-23T12:58:35Z",
    "title_canon_sha256": "bc7535796833a4f141210b7bbcf26476c5c145af792f6af51394f48e40abc391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09103",
    "kind": "arxiv",
    "version": 2
  }
}