Pith Number

pith:4YVOZ7GS

pith:2011:4YVOZ7GS7VUR647HQJHMIP2BNZ

not attested not anchored not stored refs pending

$uvby-\beta$ photoelectric photometry of the open clusters NGC 6811 and NGC 6830

A. Espinosa, A. Renteria, E. Romero, H. Garcia, J.H. Pena, L. Fox Machado, S. Skinner

arxiv:1106.2220 v1 · 2011-06-11 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YVOZ7GS7VUR647HQJHMIP2BNZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:20:06.222579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62aecfcd2fd691f73e7824ec43f416e7150a3390e59901add976548651da819

Aliases

arxiv: 1106.2220 · arxiv_version: 1106.2220v1 · doi: 10.48550/arxiv.1106.2220 · pith_short_12: 4YVOZ7GS7VUR · pith_short_16: 4YVOZ7GS7VUR647H · pith_short_8: 4YVOZ7GS

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/4YVOZ7GS7VUR647HQJHMIP2BNZ \
  | 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: e62aecfcd2fd691f73e7824ec43f416e7150a3390e59901add976548651da819

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15c873b38759ed9e6b359cbb2327b605a333c69568121c064f414a273d83c46a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-06-11T08:51:08Z",
    "title_canon_sha256": "601082debec7fec5cb73028adbe6f9f0fb36e0d6100541232ee586b11ae2caf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2220",
    "kind": "arxiv",
    "version": 1
  }
}