Pith Number

pith:XJF4UU2J

pith:2021:XJF4UU2J6ZUOBQUKCIFLAI7HSP

not attested not anchored not stored refs pending

Grassmannian learning mutual subspace method for image set recognition

Bernardo B. Gatto, Kazuhiro Fukui, Lincon S. Souza, Naoya Sogi, Takumi Kobayashi

arxiv:2111.04352 v1 · 2021-11-08 · 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{XJF4UU2J6ZUOBQUKCIFLAI7HSP}

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	2026-07-05T03:29:58.920553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba4bca5349f668e0c28a120ab023e793d9df97c3337ec1e15cc69b0831472a03

Aliases

arxiv: 2111.04352 · arxiv_version: 2111.04352v1 · doi: 10.48550/arxiv.2111.04352 · pith_short_12: XJF4UU2J6ZUO · pith_short_16: XJF4UU2J6ZUOBQUK · pith_short_8: XJF4UU2J

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/XJF4UU2J6ZUOBQUKCIFLAI7HSP \
  | 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: ba4bca5349f668e0c28a120ab023e793d9df97c3337ec1e15cc69b0831472a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df917b6a8ed737372b993da10315c920f85422d4e3d505087cf4ecdc11922e51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-11-08T09:16:36Z",
    "title_canon_sha256": "90cb44ce050745eaf994ffbfd1447caf410778f3d57414bcbe05f336243e6a71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.04352",
    "kind": "arxiv",
    "version": 1
  }
}