Pith Number

pith:CLKNUNXI

pith:2018:CLKNUNXIRRE7MXFI7RW6ENCXBW

not attested not anchored not stored refs pending

Photometric study of the SMCNOD using variable stars from the OGLE-IV survey

E. K. Grebel, I. D\'ek\'any, R. Smolec, Z. Prudil

arxiv:1809.06087 v1 · 2018-09-17 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CLKNUNXIRRE7MXFI7RW6ENCXBW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:05:35.665991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12d4da36e88c49f65ca8fc6de234570dae4eb829a2e35f449dbd977c5105786b

Aliases

arxiv: 1809.06087 · arxiv_version: 1809.06087v1 · doi: 10.48550/arxiv.1809.06087 · pith_short_12: CLKNUNXIRRE7 · pith_short_16: CLKNUNXIRRE7MXFI · pith_short_8: CLKNUNXI

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/CLKNUNXIRRE7MXFI7RW6ENCXBW \
  | 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: 12d4da36e88c49f65ca8fc6de234570dae4eb829a2e35f449dbd977c5105786b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea8403e515ca11e1e832718fb29c664760df970fbd5c9ace84e307ce6c47751d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-17T09:17:53Z",
    "title_canon_sha256": "94a8581566c10641f206cc6fe0113498e1a25948b951479d5b9cf199450df5ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06087",
    "kind": "arxiv",
    "version": 1
  }
}