Pith Number

pith:BLZAARLC

pith:2021:BLZAARLCB2AW3BOX4IXKXA4FKA

not attested not anchored not stored refs pending

Unsupervised Visual Representation Learning by Online Constrained K-Means

Hao Li, Juhua Hu, Qi Qian, Rong Jin, Yuanhong Xu

arxiv:2105.11527 v3 · 2021-05-24 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLZAARLCB2AW3BOX4IXKXA4FKA}

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	2026-07-05T04:09:14.206784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af20045620e816d85d7e22eab8385503554f3cb546c13c23f71cd75804b4153

Aliases

arxiv: 2105.11527 · arxiv_version: 2105.11527v3 · doi: 10.48550/arxiv.2105.11527 · pith_short_12: BLZAARLCB2AW · pith_short_16: BLZAARLCB2AW3BOX · pith_short_8: BLZAARLC

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/BLZAARLCB2AW3BOX4IXKXA4FKA \
  | 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: 0af20045620e816d85d7e22eab8385503554f3cb546c13c23f71cd75804b4153

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4492c385fe3a8e843905bf02c084025886a014f5b29f62bf14da128dd304092c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-24T20:38:32Z",
    "title_canon_sha256": "c1dce998e9647441fca76467edd0a306958ddc2547103cc338a8ef961fb436b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11527",
    "kind": "arxiv",
    "version": 3
  }
}