Pith Number

pith:R6MCVI34

pith:2016:R6MCVI346IVJYAZIHTVGTLLGUE

not attested not anchored not stored refs pending

A 12-Year Activity Cycle for HD 219134

Artie P. Hatzes, Caroline Caldwell, Erik J. Brugamyer, Ivan Ram\'irez, Marshall C. Johnson, Michael Endl, Paul Robertson, Phillip J. MacQueen, Robert A. Wittenmyer, Stefano Meschiari, William D. Cochran

arxiv:1602.05200 v1 · 2016-02-16 · astro-ph.EP · 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{R6MCVI346IVJYAZIHTVGTLLGUE}

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	2026-05-18T00:38:42.351213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f982aa37cf22a9c03283cea69ad66a10c51137babdc6114f4355fcec458cd54

Aliases

arxiv: 1602.05200 · arxiv_version: 1602.05200v1 · doi: 10.48550/arxiv.1602.05200 · pith_short_12: R6MCVI346IVJ · pith_short_16: R6MCVI346IVJYAZI · pith_short_8: R6MCVI34

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/R6MCVI346IVJYAZIHTVGTLLGUE \
  | 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: 8f982aa37cf22a9c03283cea69ad66a10c51137babdc6114f4355fcec458cd54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20416b9ab85090cb88ef9e1d8b69e3a689519bf9407e136fc915a6eb4bbdda4e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-02-16T21:00:07Z",
    "title_canon_sha256": "8cbd6e507efde9d5cb6f07af974a2922ebb8657978c8144227f76fd6cc6b8891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05200",
    "kind": "arxiv",
    "version": 1
  }
}