Pith Number

pith:SQEN3CAJ

pith:2016:SQEN3CAJP7F6JRP7H7AXQTGQUN

not attested not anchored not stored refs pending

The magnificent past of RR Lyrae variables

Alain Klotz, Ennio Poretti, Jean-Francois Le Borgne, Kenji Hirosawa, Maurice Audejean

arxiv:1601.02772 v1 · 2016-01-12 · 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{SQEN3CAJP7F6JRP7H7AXQTGQUN}

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	2026-05-18T01:22:59.660999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9408dd88097fcbe4c5ff3fc1784cd0a36de75ac4df12de46f459797a4ffddde4

Aliases

arxiv: 1601.02772 · arxiv_version: 1601.02772v1 · doi: 10.48550/arxiv.1601.02772 · pith_short_12: SQEN3CAJP7F6 · pith_short_16: SQEN3CAJP7F6JRP7 · pith_short_8: SQEN3CAJ

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/SQEN3CAJP7F6JRP7H7AXQTGQUN \
  | 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: 9408dd88097fcbe4c5ff3fc1784cd0a36de75ac4df12de46f459797a4ffddde4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "641708f72b245cce3e1aa83b8137c8ddccff58182fcaa80004bce0707b45a540",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-01-12T09:04:57Z",
    "title_canon_sha256": "38f5ecb1552ef699b457c4242741a35007db67d5d7c84e557e93eed2545b31cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02772",
    "kind": "arxiv",
    "version": 1
  }
}