Pith Number

pith:QJ4KNOSA

pith:2020:QJ4KNOSA36352PZIYMREQ7CZHH

not attested not anchored not stored refs pending

Sixteen overlooked open clusters in the fourth Galactic quadrant. A combined analysis of UBVI photometry and Gaia DR2 with ASteCA

A. Moitinho, E. E. Giorgi, G. Carraro, G. I. Perren, M. S. Pera, R. A. V\'azquez

arxiv:2003.12138 v1 · 2020-03-26 · 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{QJ4KNOSA36352PZIYMREQ7CZHH}

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	2026-07-05T01:05:45.788341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8278a6ba40dfb7dd3f28c322487c5939ff6e181a7e32d638e1d4f5aed87a0f25

Aliases

arxiv: 2003.12138 · arxiv_version: 2003.12138v1 · doi: 10.48550/arxiv.2003.12138 · pith_short_12: QJ4KNOSA3635 · pith_short_16: QJ4KNOSA36352PZI · pith_short_8: QJ4KNOSA

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/QJ4KNOSA36352PZIYMREQ7CZHH \
  | 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: 8278a6ba40dfb7dd3f28c322487c5939ff6e181a7e32d638e1d4f5aed87a0f25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b4de69a1c0028a4c2278999b61c651a189712c0703f8e4d7d7ba53e2d19d0f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-03-26T20:18:10Z",
    "title_canon_sha256": "7e05af04943ddaaf2ce6cf1b0f0195817d864963c397ed7b3b4c7888425e1d61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12138",
    "kind": "arxiv",
    "version": 1
  }
}