Pith Number

pith:3TRLFVSB

pith:2015:3TRLFVSBKKWKVBGCEQUUGCTPOQ

not attested not anchored not stored refs pending

Clustering by Hierarchical Nearest Neighbor Descent (H-NND)

Teng Qiu, Yongjie Li

arxiv:1509.02805 v3 · 2015-09-09 · stat.ML · cs.CV · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TRLFVSBKKWKVBGCEQUUGCTPOQ}

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	2026-05-18T01:19:38.628635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dce2b2d64152acaa84c22429430a6f7431fc4da91ebbf70d3548ae9621b29e8a

Aliases

arxiv: 1509.02805 · arxiv_version: 1509.02805v3 · doi: 10.48550/arxiv.1509.02805 · pith_short_12: 3TRLFVSBKKWK · pith_short_16: 3TRLFVSBKKWKVBGC · pith_short_8: 3TRLFVSB

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/3TRLFVSBKKWKVBGCEQUUGCTPOQ \
  | 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: dce2b2d64152acaa84c22429430a6f7431fc4da91ebbf70d3548ae9621b29e8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c937a2021570d8bf64c8dd85cb4f9289812406b683e6b7045b094a2170d7732a",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-09-09T15:15:44Z",
    "title_canon_sha256": "324aa5c8927f61719ba191f6537a2685b3e37d7f90f75ffa0bb4f8b0b2043c55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02805",
    "kind": "arxiv",
    "version": 3
  }
}