Pith Number

pith:5TMZ7NJS

pith:2010:5TMZ7NJSLTUO6RXQGJZT6TRSP3

not attested not anchored not stored refs pending

Insights into the Cepheid distance scale

F. Caputo, G. Bono, I. Musella, M. Marconi

arxiv:1004.0363 v1 · 2010-04-02 · 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{5TMZ7NJSLTUO6RXQGJZT6TRSP3}

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	2026-05-18T02:08:14.773199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecd99fb5325ce8ef46f032733f4e327eddc7ffffbc0683cb8bb4b8e654b9ee19

Aliases

arxiv: 1004.0363 · arxiv_version: 1004.0363v1 · doi: 10.48550/arxiv.1004.0363 · pith_short_12: 5TMZ7NJSLTUO · pith_short_16: 5TMZ7NJSLTUO6RXQ · pith_short_8: 5TMZ7NJS

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/5TMZ7NJSLTUO6RXQGJZT6TRSP3 \
  | 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: ecd99fb5325ce8ef46f032733f4e327eddc7ffffbc0683cb8bb4b8e654b9ee19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d798d4e69eeab5772044bd99eb3af67d4c32ec40097de945e0be8d8d792ed1f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-04-02T17:14:28Z",
    "title_canon_sha256": "16a1205b839026ef650399948b79a28daad2154e8aeeea175ad61ef8bbb12fce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0363",
    "kind": "arxiv",
    "version": 1
  }
}