Pith Number

pith:2GIB5MW2

pith:2012:2GIB5MW2PF5RO4LHGCZ6PYGCSC

not attested not anchored not stored refs pending

RR-Lyrae-type pulsations from a 0.26-solar-mass star in a binary system

A. McWilliam, A. Udalski, B. Pilecki, D. Graczyk, G. Bono, G. Pietrzynski, G. Preston, I. B. Thompson, I. Roederer, I. Soszynski, J. Storm, K. Stepien, M. Gorski, N. Nardetto, P. G. Prada Moroni, P. Konorski, W. Gieren

arxiv:1204.1872 v1 · 2012-04-09 · 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{2GIB5MW2PF5RO4LHGCZ6PYGCSC}

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	2026-05-18T03:58:14.834089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1901eb2da797b17716730b3e7e0c2909b31fd5bda05099dc6dd3f1954fec74c

Aliases

arxiv: 1204.1872 · arxiv_version: 1204.1872v1 · doi: 10.48550/arxiv.1204.1872 · pith_short_12: 2GIB5MW2PF5R · pith_short_16: 2GIB5MW2PF5RO4LH · pith_short_8: 2GIB5MW2

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/2GIB5MW2PF5RO4LHGCZ6PYGCSC \
  | 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: d1901eb2da797b17716730b3e7e0c2909b31fd5bda05099dc6dd3f1954fec74c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "221ac47b6b912b13e9591b5e6e4b519a7c149bce2aadd39a42e58093ed7d9bb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-09T13:42:38Z",
    "title_canon_sha256": "f1f33a13e7b4c58b749fad81579309e6a164ddd05818711c239a359f12a30be6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1872",
    "kind": "arxiv",
    "version": 1
  }
}