Pith Number

pith:QJ7435LJ

pith:2011:QJ7435LJUG2UKAVRTKQQXN4SRE

not attested not anchored not stored refs pending

Ground-Based BVRI Follow-Up Observations of the Cepheid V1154 Cyg in Kepler's Field

A. Henden, C.-C. Ngeow, L. Szabados, M. A. T. Groenewegen, R. Szabo, the Kepler Cepheid Working Group

arxiv:1111.2101 v1 · 2011-11-09 · 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{QJ7435LJUG2UKAVRTKQQXN4SRE}

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	2026-05-18T04:08:44.115354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

827fcdf569a1b54502b19aa10bb7928902a02c4ca9634d9927c615760c5077f9

Aliases

arxiv: 1111.2101 · arxiv_version: 1111.2101v1 · doi: 10.48550/arxiv.1111.2101 · pith_short_12: QJ7435LJUG2U · pith_short_16: QJ7435LJUG2UKAVR · pith_short_8: QJ7435LJ

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/QJ7435LJUG2UKAVRTKQQXN4SRE \
  | 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: 827fcdf569a1b54502b19aa10bb7928902a02c4ca9634d9927c615760c5077f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00771c343ab46920d84e1a14ecff9ebb9f3d487ae15f07962dfc1ab76e0e4d83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-09T04:20:09Z",
    "title_canon_sha256": "0baa880604a6839fbeee473233b1f9f2dd9e62a6988eb19d648d25ea0fc0fc57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2101",
    "kind": "arxiv",
    "version": 1
  }
}