Pith Number

pith:NBPPUUDP

pith:2016:NBPPUUDPXWLMHIMJEBJ6Q2Q7QQ

not attested not anchored not stored refs pending

Unsupervised single-particle deep clustering via statistical manifold learning

Bevin Brett, Charles Congdon, Jiayi Wu, Qi Ouyang, Shuobing Chen, Yong-Bei Ma, Youdong Mao

arxiv:1604.04539 v2 · 2016-04-15 · physics.data-an · cs.CV · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBPPUUDPXWLMHIMJEBJ6Q2Q7QQ}

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	2026-05-18T00:31:43.918118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

685efa506fbd96c3a1892053e86a1f8409bf63a7f4b3142346d7bb8963d90c48

Aliases

arxiv: 1604.04539 · arxiv_version: 1604.04539v2 · doi: 10.48550/arxiv.1604.04539 · pith_short_12: NBPPUUDPXWLM · pith_short_16: NBPPUUDPXWLMHIMJ · pith_short_8: NBPPUUDP

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/NBPPUUDPXWLMHIMJEBJ6Q2Q7QQ \
  | 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: 685efa506fbd96c3a1892053e86a1f8409bf63a7f4b3142346d7bb8963d90c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fff67b36e42447435f70e10facc6158718e455d4b3a0a430b5afbfdec50d092",
    "cross_cats_sorted": [
      "cs.CV",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2016-04-15T15:28:39Z",
    "title_canon_sha256": "6bfe232ee2678275994cd02c06288d5595896a53d992e966cfaba2e77ecbd477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04539",
    "kind": "arxiv",
    "version": 2
  }
}