Pith Number

pith:Q2EB6MMW

pith:2008:Q2EB6MMWCAYBFYJJUVLCMUNEU3

not attested not anchored not stored refs pending

The Araucaria Project. The Distance to the Sculptor dwarf spheroidal galaxy from infrared photometry of RR Lyrae stars

A. Walker, F. Bresolin, G. Pietrzynski, J. Storm, K. Nalewajko, L. Rizzi, M. Dall'Ora, O. Szewczyk, R.-P. Kudritzki, V. Ivanov, W. Gieren

arxiv:0804.0347 v1 · 2008-04-02 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2EB6MMWCAYBFYJJUVLCMUNEU3}

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	2026-07-04T17:10:04.564143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86881f3196103012e129a5562651a4a6c6e1302944cc51eb80bfafdfd7b7fd70

Aliases

arxiv: 0804.0347 · arxiv_version: 0804.0347v1 · doi: 10.48550/arxiv.0804.0347 · pith_short_12: Q2EB6MMWCAYB · pith_short_16: Q2EB6MMWCAYBFYJJ · pith_short_8: Q2EB6MMW

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/Q2EB6MMWCAYBFYJJUVLCMUNEU3 \
  | 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: 86881f3196103012e129a5562651a4a6c6e1302944cc51eb80bfafdfd7b7fd70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b3d9a6b882b9d032fa750d1f9c46070fd34681680283fb10dfb12b73f68f9a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-02T13:42:25Z",
    "title_canon_sha256": "f73b2958e54d0a1b1b1f9741fabd2d053c9c41f5ea05654b0e1a1f48f2e215eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.0347",
    "kind": "arxiv",
    "version": 1
  }
}