Pith Number

pith:PU3WGGM3

pith:2013:PU3WGGM3HSZNXTVIAIQ5GOYU4U

not attested not anchored not stored refs pending

Towards a photometric metallicity scale for open clusters

E. Paunzen, M. Netopil

arxiv:1307.2094 v1 · 2013-07-08 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PU3WGGM3HSZNXTVIAIQ5GOYU4U}

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	2026-05-18T01:48:58.709871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3763199b3cb2dbcea80221d33b14e532ffc5113858650dc06622143c0dc5ca

Aliases

arxiv: 1307.2094 · arxiv_version: 1307.2094v1 · doi: 10.48550/arxiv.1307.2094 · pith_short_12: PU3WGGM3HSZN · pith_short_16: PU3WGGM3HSZNXTVI · pith_short_8: PU3WGGM3

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/PU3WGGM3HSZNXTVIAIQ5GOYU4U \
  | 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: 7d3763199b3cb2dbcea80221d33b14e532ffc5113858650dc06622143c0dc5ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c252960adb3a22e04138544bd09b245cf638b5d1e5f3c0647e138c4928eced5a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-08T13:57:12Z",
    "title_canon_sha256": "cf04c0af58fc7469e8c20701d50306f28752e9df1b6e5a79020e499a222b8826"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2094",
    "kind": "arxiv",
    "version": 1
  }
}