Pith Number

pith:5ZGZHHHP

pith:2012:5ZGZHHHP6VOLVZ6KVCBKTB44WE

not attested not anchored not stored refs pending

Ruprecht 147: The oldest nearby open cluster as a new benchmark for stellar astrophysics

Angie Wolfgang, Jason L. Curtis, Jason T. Wright, John A. Johnson, John M. Brewer

arxiv:1206.6533 v2 · 2012-06-27 · 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{5ZGZHHHP6VOLVZ6KVCBKTB44WE}

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	2026-05-18T00:44:39.213289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee4d939ceff55cbae7caa882a9879cb13ee257af437894b3d8c082390d9ca6f1

Aliases

arxiv: 1206.6533 · arxiv_version: 1206.6533v2 · doi: 10.48550/arxiv.1206.6533 · pith_short_12: 5ZGZHHHP6VOL · pith_short_16: 5ZGZHHHP6VOLVZ6K · pith_short_8: 5ZGZHHHP

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/5ZGZHHHP6VOLVZ6KVCBKTB44WE \
  | 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: ee4d939ceff55cbae7caa882a9879cb13ee257af437894b3d8c082390d9ca6f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f7734d6d831f874cb842934beb48a687865f46f9e4acb9686e06dfbe89518e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-06-27T22:31:15Z",
    "title_canon_sha256": "b4b0fd0bce6094cf531da48dd1a1923759a2553619f4e6267392af8b8453e0c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6533",
    "kind": "arxiv",
    "version": 2
  }
}