Pith Number

pith:4FFMLERM

pith:2018:4FFMLERMFXKUARVQZQYP5HCXZR

not attested not anchored not stored refs pending

On the interpretation of the long-term cyclic period variations in RR Lyrae stars

\'A. S\'odor, E. Guggenberger, J. Li\v{s}ka, K. Kolenberg, M. Skarka, R. D\v{r}ev\v{e}n\'y, T. Barnes

arxiv:1809.03230 v1 · 2018-09-10 · 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{4FFMLERMFXKUARVQZQYP5HCXZR}

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	2026-05-18T00:06:09.574663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e14ac5922c2dd54046b0cc30fe9c57cc51c854c509eb266176be2a20be74ecf5

Aliases

arxiv: 1809.03230 · arxiv_version: 1809.03230v1 · doi: 10.48550/arxiv.1809.03230 · pith_short_12: 4FFMLERMFXKU · pith_short_16: 4FFMLERMFXKUARVQ · pith_short_8: 4FFMLERM

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/4FFMLERMFXKUARVQZQYP5HCXZR \
  | 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: e14ac5922c2dd54046b0cc30fe9c57cc51c854c509eb266176be2a20be74ecf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71dc83cfab55576c7d5d835bf3578b4af51730fba50126ce59014f9ed1f6d175",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-10T10:45:03Z",
    "title_canon_sha256": "c515510b0ea5a5f9ef6f685b2c979fc3bb678e56e0c85f140ca2aed59358f1fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03230",
    "kind": "arxiv",
    "version": 1
  }
}