Pith Number

pith:XS2IHAWI

pith:2018:XS2IHAWI27HKRVPN42NS2Y5OTG

not attested not anchored not stored refs pending

The origin of the Gaia phase-plane spiral

James Binney, Ralph Schoenrich

arxiv:1807.09819 v1 · 2018-07-25 · 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{XS2IHAWI27HKRVPN42NS2Y5OTG}

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	2026-05-18T00:06:37.260211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcb48382c8d7cea8d5ede69b2d63ae99a1ef369c2ea16a157a39dad872df7a43

Aliases

arxiv: 1807.09819 · arxiv_version: 1807.09819v1 · doi: 10.48550/arxiv.1807.09819 · pith_short_12: XS2IHAWI27HK · pith_short_16: XS2IHAWI27HKRVPN · pith_short_8: XS2IHAWI

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/XS2IHAWI27HKRVPN42NS2Y5OTG \
  | 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: bcb48382c8d7cea8d5ede69b2d63ae99a1ef369c2ea16a157a39dad872df7a43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a749c012f9144694dbd28e29b31b9e6fdc4b8c844ee3a36db26718925abfbeac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-25T18:43:27Z",
    "title_canon_sha256": "4bfe5c7caaa627a501bf96396d4e27d875a94904c7d5f750205dbc1103d8fbae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09819",
    "kind": "arxiv",
    "version": 1
  }
}