Pith Number

pith:E4BRQYB7

pith:2012:E4BRQYB7C6WWWR6B6S6VDIEPMO

not attested not anchored not stored refs pending

Global survey of star clusters in the Milky Way I. The pipeline and fundamental parameters in the second quadrant

A. E. Piskunov, E. Schilbach, N. V. Kharchenko, R.-D. Scholz, S. R\"oser

arxiv:1207.4001 v1 · 2012-07-17 · 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{E4BRQYB7C6WWWR6B6S6VDIEPMO}

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	2026-05-18T01:56:17.486129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

270318603f17ad6b47c1f4bd51a08f639410eafa2506cb462a9adccdb1192a16

Aliases

arxiv: 1207.4001 · arxiv_version: 1207.4001v1 · doi: 10.48550/arxiv.1207.4001 · pith_short_12: E4BRQYB7C6WW · pith_short_16: E4BRQYB7C6WWWR6B · pith_short_8: E4BRQYB7

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/E4BRQYB7C6WWWR6B6S6VDIEPMO \
  | 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: 270318603f17ad6b47c1f4bd51a08f639410eafa2506cb462a9adccdb1192a16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04e8437df4f31f1ee3f229aa6a02fe3556d97468fdb818390a38f7895d8a439",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-07-17T14:21:00Z",
    "title_canon_sha256": "6400aeae70d3d901e1546a3cfca7197130108357f739d70d32859a61db6ab9ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4001",
    "kind": "arxiv",
    "version": 1
  }
}