Pith Number

pith:QRPY6RHO

pith:2018:QRPY6RHO2IXKC2UM6TZLA2BBCZ

not attested not anchored not stored refs pending

3D mapping of young stars in the solar neighbourhood with Gaia DR2

A. G. A. Brown, E. Zari, H. Hashemi, K. Jardine, P.T. de Zeeuw

arxiv:1810.09819 v2 · 2018-10-23 · 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{QRPY6RHO2IXKC2UM6TZLA2BBCZ}

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	2026-05-17T23:58:01.886453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

845f8f44eed22ea16a8cf4f2b06821167d57d0c638ea8285e2c6fc906a45b8be

Aliases

arxiv: 1810.09819 · arxiv_version: 1810.09819v2 · doi: 10.48550/arxiv.1810.09819 · pith_short_12: QRPY6RHO2IXK · pith_short_16: QRPY6RHO2IXKC2UM · pith_short_8: QRPY6RHO

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/QRPY6RHO2IXKC2UM6TZLA2BBCZ \
  | 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: 845f8f44eed22ea16a8cf4f2b06821167d57d0c638ea8285e2c6fc906a45b8be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "312cf23b54e9f0f75c51a0bd6252e29c0642335c85fe6a5aa0d1d62f4f1b3c22",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-23T12:41:05Z",
    "title_canon_sha256": "187f8b592b842b1e0ab78e6eb51c65ec3aab395ab9d61887d5b73f5a9343eb2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09819",
    "kind": "arxiv",
    "version": 2
  }
}