Pith Number

pith:KOBRKJRQ

pith:2013:KOBRKJRQLEGG4ZNVI3F6EKBWEZ

not attested not anchored not stored refs pending

Properties of M31. II: A Cepheid disk sample derived from the first year of PS1 PAndromeda data

Arno Riffeser, Chien-Hsiu Lee, Chow-Choong Ngeow, Claus Goessl, E. A. Magnier, Jan Snigula, Johannes Koppenhoefer, K. C. Chambers, K. W. Hodapp, Mihael Kodric, N. Kaiser, P. A. Price, Ralf Bender, R.-P. Kudritzki, Stella Seitz, Ulrich Hopp, W. S. Burgett

arxiv:1301.6170 v1 · 2013-01-25 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KOBRKJRQLEGG4ZNVI3F6EKBWEZ}

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	2026-05-18T03:30:40.939870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5383152630590c6e65b546cbe228362652f7c3ecc93fcf2248ced32de62b6a8f

Aliases

arxiv: 1301.6170 · arxiv_version: 1301.6170v1 · doi: 10.48550/arxiv.1301.6170 · pith_short_12: KOBRKJRQLEGG · pith_short_16: KOBRKJRQLEGG4ZNV · pith_short_8: KOBRKJRQ

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/KOBRKJRQLEGG4ZNVI3F6EKBWEZ \
  | 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: 5383152630590c6e65b546cbe228362652f7c3ecc93fcf2248ced32de62b6a8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92707e2287a35572fec6684ca53626caddf7ceadf65298988af6cdd8201635ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-25T21:00:04Z",
    "title_canon_sha256": "76ad9e4d9321ee3e74c57576644272d39995d4beddf4491be9ca0545513dc423"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6170",
    "kind": "arxiv",
    "version": 1
  }
}