Pith Number

pith:M5XCHZR2

pith:2012:M5XCHZR2ZYC76RNURZC2OVKWAG

not attested not anchored not stored refs pending

Period and light curve fluctuations of the Kepler Cepheid V1154 Cyg

A. Derekas, Gy. M. Szabo, J. C. Smith, J. M. Nemec, K. Kinemuchi, L. Berdnikov, L. L. Kiss, L. Szabados, M. Chadid, N. R. Evans, P. Tenenbaum, R. Smolec, R. Szabo, S. E. Seader

arxiv:1207.2907 v2 · 2012-07-12 · 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{M5XCHZR2ZYC76RNURZC2OVKWAG}

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	2026-05-18T01:56:24.520923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

676e23e63ace05ff45b48e45a7555601a4ab69cc21cbffead74bae49a029a957

Aliases

arxiv: 1207.2907 · arxiv_version: 1207.2907v2 · doi: 10.48550/arxiv.1207.2907 · pith_short_12: M5XCHZR2ZYC7 · pith_short_16: M5XCHZR2ZYC76RNU · pith_short_8: M5XCHZR2

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/M5XCHZR2ZYC76RNURZC2OVKWAG \
  | 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: 676e23e63ace05ff45b48e45a7555601a4ab69cc21cbffead74bae49a029a957

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5d980ddc3d391614ed1c39a9fb76d7eae26a00aea1c0d79ba9b3e605a94a6d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-12T10:32:12Z",
    "title_canon_sha256": "c282bb5e3d0d54fe153fde23cddd3860000f40e0027afc248a3bd98f32a296dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2907",
    "kind": "arxiv",
    "version": 2
  }
}