Pith Number

pith:5OM5EVSG

pith:2022:5OM5EVSG4QPFHUVK7GHTFYBCZZ

not attested not anchored not stored refs pending

Hierarchical Clustering in Astronomy

Heng Yu, Xiaolan Hou

arxiv:2211.06002 v1 · 2022-11-11 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OM5EVSG4QPFHUVK7GHTFYBCZZ}

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	2026-07-05T05:15:16.109654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb99d25646e41e53d2aaf98f32e022ce636dad22fea3a1470b9286fb6ac25978

Aliases

arxiv: 2211.06002 · arxiv_version: 2211.06002v1 · doi: 10.48550/arxiv.2211.06002 · pith_short_12: 5OM5EVSG4QPF · pith_short_16: 5OM5EVSG4QPFHUVK · pith_short_8: 5OM5EVSG

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/5OM5EVSG4QPFHUVK7GHTFYBCZZ \
  | 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: eb99d25646e41e53d2aaf98f32e022ce636dad22fea3a1470b9286fb6ac25978

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3daa5278890fda9aaf7dc5b9c84223ddfb41e92d558d2ad3a14afa70505e1dea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-11-11T05:04:17Z",
    "title_canon_sha256": "48aaf515534de9fe46262a13f7e75a42269c0dd9ea8b98f89c2fed37ed562b22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.06002",
    "kind": "arxiv",
    "version": 1
  }
}