Pith Number

pith:KQIFDU4X

pith:2019:KQIFDU4XA5Y5SXCPBTCQXUUPA3

not attested not anchored not stored refs pending

Variable Stars in Sagittarius Globular Clusters I. Arp~2

Barton J. Pritzl, Horace A. Smith, Jura Borissova, M\'arcio Catelan, Ricardo Salinas, Thomas C. Gehrman

arxiv:1902.10591 v1 · 2019-02-27 · 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{KQIFDU4XA5Y5SXCPBTCQXUUPA3}

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	2026-05-17T23:47:25.888035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

541051d3970771d95c4f0cc50bd28f06d40250d8f75c824ec7f3ba09014f5fa4

Aliases

arxiv: 1902.10591 · arxiv_version: 1902.10591v1 · doi: 10.48550/arxiv.1902.10591 · pith_short_12: KQIFDU4XA5Y5 · pith_short_16: KQIFDU4XA5Y5SXCP · pith_short_8: KQIFDU4X

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/KQIFDU4XA5Y5SXCPBTCQXUUPA3 \
  | 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: 541051d3970771d95c4f0cc50bd28f06d40250d8f75c824ec7f3ba09014f5fa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42ad2b260e03c7a922bdec69f807fdd05b243bea086a9b2106df92d013e737e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-27T15:32:02Z",
    "title_canon_sha256": "5403e6963e73f97b095b67a1fdf4983c5210db7e249a2e6ea17f4f83e44fb65c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10591",
    "kind": "arxiv",
    "version": 1
  }
}