Pith Number

pith:CZZGRXP2

pith:2009:CZZGRXP2GNFNKTVEZD4T53JFVC

not attested not anchored not stored refs pending

The Araucaria Project. The Distance to the Small Magellanic Cloud from Near-Infrared Photometry of RR Lyrae Variables

Anna Ciechanowska, Fabio Bresolin, Grzegorz Pietrzynski, Olaf Szewczyk, Rolf-Peter Kudritzki, Wolfgang Gieren

arxiv:0910.3885 v1 · 2009-10-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZZGRXP2GNFNKTVEZD4T53JFVC}

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	2026-05-18T02:34:18.061854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

167268ddfa334ad54ea4c8f93eed25a8b47b56da35bb8e9436f1aa5e70917abd

Aliases

arxiv: 0910.3885 · arxiv_version: 0910.3885v1 · doi: 10.48550/arxiv.0910.3885 · pith_short_12: CZZGRXP2GNFN · pith_short_16: CZZGRXP2GNFNKTVE · pith_short_8: CZZGRXP2

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/CZZGRXP2GNFNKTVEZD4T53JFVC \
  | 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: 167268ddfa334ad54ea4c8f93eed25a8b47b56da35bb8e9436f1aa5e70917abd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a88e582911a358e14f5521b588cf7991da3a4f15c3271583c76f3b5d865d2e1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-20T15:46:16Z",
    "title_canon_sha256": "c00c62410ebb2032e34250705b33a1ebc7ff749908169599130e58e1a2265846"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3885",
    "kind": "arxiv",
    "version": 1
  }
}