Pith Number

pith:7XVR5Z7I

pith:2018:7XVR5Z7IJLKBNML35DJ7Y5VKTF

not attested not anchored not stored refs pending

A Gaia DR2 view of the Open Cluster population in the Milky Way

A. Bragaglia, A. Castro-Ginard, A. Krone-Martins, A. Moitinho, A. Vallenari, C. Jordi, C. Soubiran, D. Bossini, L. Balaguer-N\'u\~nez, L. Casamiquela, R. Carrera, R. Sordo, T. Cantat-Gaudin

arxiv:1805.08726 v2 · 2018-05-22 · 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{7XVR5Z7IJLKBNML35DJ7Y5VKTF}

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	2026-05-18T00:01:59.297841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdeb1ee7e84ad416b17be8d3fc76aa995f387c4dea703aa606583ecbb8f3e0ab

Aliases

arxiv: 1805.08726 · arxiv_version: 1805.08726v2 · doi: 10.48550/arxiv.1805.08726 · pith_short_12: 7XVR5Z7IJLKB · pith_short_16: 7XVR5Z7IJLKBNML3 · pith_short_8: 7XVR5Z7I

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/7XVR5Z7IJLKBNML35DJ7Y5VKTF \
  | 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: fdeb1ee7e84ad416b17be8d3fc76aa995f387c4dea703aa606583ecbb8f3e0ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97d3ec0380576fb21577cd9b23502a0068176a8a8617eeee50091d7bbb7a0520",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-22T16:31:19Z",
    "title_canon_sha256": "bbb3acd2591409f1c9ecadef96a16cce50fd7d72bfe623e3a7ae6862e19f444e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08726",
    "kind": "arxiv",
    "version": 2
  }
}