Pith Number

pith:U32XAVYR

pith:2017:U32XAVYRJ6GRVBRO67ID6WBXM3

not attested not anchored not stored refs pending

Multiwavelength Light Curve Parameters of Cepheid Variables

Anupam Bhardwaj, Chow-Choong Ngeow, Harinder P. Singh, Marcella Marconi, Marina Rejkuba, Shashi M. Kanbur

arxiv:1704.02098 v1 · 2017-04-07 · 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{U32XAVYRJ6GRVBRO67ID6WBXM3}

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	2026-05-18T00:35:22.776036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6f57057114f8d1a862ef7d03f583766e67383585af8b59f2dc4ab15c7bb55bd

Aliases

arxiv: 1704.02098 · arxiv_version: 1704.02098v1 · doi: 10.48550/arxiv.1704.02098 · pith_short_12: U32XAVYRJ6GR · pith_short_16: U32XAVYRJ6GRVBRO · pith_short_8: U32XAVYR

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/U32XAVYRJ6GRVBRO67ID6WBXM3 \
  | 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: a6f57057114f8d1a862ef7d03f583766e67383585af8b59f2dc4ab15c7bb55bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1abd8124753ed2331e4a0bc907310a2b843e67ca690c9455d0ce0f6c986a8d3e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-07T06:01:28Z",
    "title_canon_sha256": "cdf1e2f582263af17c880f35292738762c640830ce51897229213e5354f6cde1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02098",
    "kind": "arxiv",
    "version": 1
  }
}