Pith Number

pith:6UPORLA2

pith:2014:6UPORLA2UP7EKIGGOTJO7VCAXT

not attested not anchored not stored refs pending

Spectroscopic study of solar twins and analogues

Chris Flynn, Juliet Datson, Laura Portinari

arxiv:1412.8168 v2 · 2014-12-28 · 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{6UPORLA2UP7EKIGGOTJO7VCAXT}

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	2026-05-18T02:27:31.635419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f51ee8ac1aa3fe4520c674d2efd440bcd794863db72ff10e736f122663b13c63

Aliases

arxiv: 1412.8168 · arxiv_version: 1412.8168v2 · doi: 10.48550/arxiv.1412.8168 · pith_short_12: 6UPORLA2UP7E · pith_short_16: 6UPORLA2UP7EKIGG · pith_short_8: 6UPORLA2

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/6UPORLA2UP7EKIGGOTJO7VCAXT \
  | 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: f51ee8ac1aa3fe4520c674d2efd440bcd794863db72ff10e736f122663b13c63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc4d8aac2bb2e4f2980479198764b25039c493be77da9f3ffaad2edc640e4677",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-12-28T14:13:24Z",
    "title_canon_sha256": "23e0d244dcd4fc591e495862029613507a23025ff03a049294f6c70caa1176c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8168",
    "kind": "arxiv",
    "version": 2
  }
}