Pith Number

pith:6UTGX5II

pith:2015:6UTGX5IIXPGVVNHYHRIMKQR7KB

not attested not anchored not stored refs pending

A Low-Resolution Spectroscopic Exploration of Puzzling OGLE Variable Stars

A. Udalski, C. Germana, F. Di Mille, I. Soszynski, M. Latour, P. Pietrukowicz, R. Angeloni

arxiv:1503.03499 v2 · 2015-03-11 · 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{6UTGX5IIXPGVVNHYHRIMKQR7KB}

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	2026-05-18T02:17:33.068268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5266bf508bbcd5ab4f83c50c5423f5048d933186d7d09112354323f25ca8428

Aliases

arxiv: 1503.03499 · arxiv_version: 1503.03499v2 · doi: 10.48550/arxiv.1503.03499 · pith_short_12: 6UTGX5IIXPGV · pith_short_16: 6UTGX5IIXPGVVNHY · pith_short_8: 6UTGX5II

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/6UTGX5IIXPGVVNHYHRIMKQR7KB \
  | 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: f5266bf508bbcd5ab4f83c50c5423f5048d933186d7d09112354323f25ca8428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91823a71a6b9311f5d66250bbffac1e98e140141410a396b430b8211cf448d5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-11T21:00:09Z",
    "title_canon_sha256": "5033a384358328003f299d6174022772fce5634ce98d07e422d334afcad8aea0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03499",
    "kind": "arxiv",
    "version": 2
  }
}