Pith Number

pith:IOXNFX4F

pith:2014:IOXNFX4FBAAZ4UTHQJX3TYL6SZ

not attested not anchored not stored refs pending

Learning Discriminative Stein Kernel for SPD Matrices and Its Applications

Jianjia Zhang, Lei Wang, Luping Zhou, Wanqing Li

arxiv:1407.1974 v3 · 2014-07-08 · 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{IOXNFX4FBAAZ4UTHQJX3TYL6SZ}

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	2026-05-18T02:07:27.118053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43aed2df8508019e5267826fb9e17e9671b78dbba2b4906a28b1d38456c005c5

Aliases

arxiv: 1407.1974 · arxiv_version: 1407.1974v3 · doi: 10.48550/arxiv.1407.1974 · pith_short_12: IOXNFX4FBAAZ · pith_short_16: IOXNFX4FBAAZ4UTH · pith_short_8: IOXNFX4F

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/IOXNFX4FBAAZ4UTHQJX3TYL6SZ \
  | 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: 43aed2df8508019e5267826fb9e17e9671b78dbba2b4906a28b1d38456c005c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85d38c095eace8dba839cac5a324ff08e10ffadd64b12a7d84320bdba5f60719",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-07-08T07:07:12Z",
    "title_canon_sha256": "df4f4bb833437d5ae650e12c46a65e031ee6d8132d626a8bf6182e46a8805157"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1974",
    "kind": "arxiv",
    "version": 3
  }
}