Pith Number

pith:ZCOIALOY

pith:2015:ZCOIALOYC4GQRGJWGT7E6VQJZ7

not attested not anchored not stored refs pending

K2 Variable Catalogue II: Machine Learning Classification of Variable Stars and Eclipsing Binaries in K2 Fields 0-4

D. J. A. Brown, D. J. Armstrong, D. Pollacco, H. P. Osborn, J. Kirk, J. McCormac, J. Spake, K. W. F. Lam, M. H. Kristiansen, P. J. Wheatley, R. West, S. Walker

arxiv:1512.01246 v2 · 2015-12-03 · astro-ph.SR · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCOIALOYC4GQRGJWGT7E6VQJZ7}

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	2026-05-18T01:21:51.256485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c89c802dd8170d08993634fe4f5609cfd678ca9d86c3fa76592a980e181700e2

Aliases

arxiv: 1512.01246 · arxiv_version: 1512.01246v2 · doi: 10.48550/arxiv.1512.01246 · pith_short_12: ZCOIALOYC4GQ · pith_short_16: ZCOIALOYC4GQRGJW · pith_short_8: ZCOIALOY

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/ZCOIALOYC4GQRGJWGT7E6VQJZ7 \
  | 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: c89c802dd8170d08993634fe4f5609cfd678ca9d86c3fa76592a980e181700e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f89a74da27f4921ed0774f1c5a62c654dcd1bc823075f9fb135620fd3c32dba7",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-03T21:08:26Z",
    "title_canon_sha256": "62d8240351f7e72e510bba7be7c2d6c70474cf51ff687888df627cd17ad28e8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01246",
    "kind": "arxiv",
    "version": 2
  }
}