Pith Number

pith:PHFPYFRO

pith:2018:PHFPYFROFUYQXY6LNQ4P2JSLCT

not attested not anchored not stored refs pending

Time-series analyses of Cepheid and RR Lyrae variables in the wide-field variability surveys

A. Bhardwaj, C.-C. Ngeow, E. P. Bellinger, H. P. Singh, M. Marconi, M. Rejkuba, S. Das, S. M. Kanbur

arxiv:1810.07364 v1 · 2018-10-17 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PHFPYFROFUYQXY6LNQ4P2JSLCT}

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	2026-05-18T00:02:58.729961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79cafc162e2d310be3cb6c38fd264b14e751ae8759575925f656eb0806699cea

Aliases

arxiv: 1810.07364 · arxiv_version: 1810.07364v1 · doi: 10.48550/arxiv.1810.07364 · pith_short_12: PHFPYFROFUYQ · pith_short_16: PHFPYFROFUYQXY6L · pith_short_8: PHFPYFRO

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/PHFPYFROFUYQXY6LNQ4P2JSLCT \
  | 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: 79cafc162e2d310be3cb6c38fd264b14e751ae8759575925f656eb0806699cea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68d5f1f6e59d338f29743df547d2863964400a816729e19676a13cb45679fcb0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-17T02:54:57Z",
    "title_canon_sha256": "003b85c0404f945784d52eab7f6bdabc74e78978231478d55ae46ed3963034b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07364",
    "kind": "arxiv",
    "version": 1
  }
}