Pith Number

pith:J7JHKEIS

pith:2019:J7JHKEISPSGZRC2NO3BH4VL4CC

not attested not anchored not stored refs pending

The spiral pattern rotation speed of the Galaxy and the corotation radius with GAIA DR2

Douglas A. Barros, Hektor Monteiro, Jacques R. D. L\'epine, Wilton S. Dias

arxiv:1905.08133 v1 · 2019-05-20 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7JHKEISPSGZRC2NO3BH4VL4CC}

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	2026-05-17T23:44:53.742264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd27511127c8d988b4d76c27e557c10ab39624f2c502992cfa41527e5ad3e7f

Aliases

arxiv: 1905.08133 · arxiv_version: 1905.08133v1 · doi: 10.48550/arxiv.1905.08133 · pith_short_12: J7JHKEISPSGZ · pith_short_16: J7JHKEISPSGZRC2N · pith_short_8: J7JHKEIS

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/J7JHKEISPSGZRC2NO3BH4VL4CC \
  | 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: 4fd27511127c8d988b4d76c27e557c10ab39624f2c502992cfa41527e5ad3e7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a0b4b18d0fd6e9b02f2d2956785e92664367f64bdae1861a6ea880e47339f68",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-20T14:18:25Z",
    "title_canon_sha256": "d97327883d4c75cca524a7021f50778a58b3afc7c9e5751ee391e9209f928989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08133",
    "kind": "arxiv",
    "version": 1
  }
}