Pith Number

pith:RSP2B2D5

pith:2018:RSP2B2D5W5QWPNZFXCR34YFTMB

not attested not anchored not stored refs pending

Origin of the Local Group satellite planes

David O'Ryan, Hongsheng Zhao, Indranil Banik

arxiv:1802.00440 v4 · 2018-02-01 · 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{RSP2B2D5W5QWPNZFXCR34YFTMB}

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	2026-05-18T00:14:21.880122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c9fa0e87db76167b725b8a3be60b36044140b1aaea78e0b24f10f2c62430d62

Aliases

arxiv: 1802.00440 · arxiv_version: 1802.00440v4 · doi: 10.48550/arxiv.1802.00440 · pith_short_12: RSP2B2D5W5QW · pith_short_16: RSP2B2D5W5QWPNZF · pith_short_8: RSP2B2D5

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/RSP2B2D5W5QWPNZFXCR34YFTMB \
  | 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: 8c9fa0e87db76167b725b8a3be60b36044140b1aaea78e0b24f10f2c62430d62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6090ce850e5aa6ad22dca74ef70a2e895cb65ea4a5f8efbac64f483e58dc94b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-01T16:31:47Z",
    "title_canon_sha256": "6e88d1024ce0c6546a86977618223fa5512a8077c2bab05283989d364f4bbd7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00440",
    "kind": "arxiv",
    "version": 4
  }
}