Pith Number

pith:N2QCKDEB

pith:2016:N2QCKDEBS5ZEHIWUY6F4SJX2H3

not attested not anchored not stored refs pending

Dimensionality reduction based on Distance Preservation to Local Mean (DPLM) for SPD matrices and its application in BCI

Alireza Davoudi, Khadijeh Sadatnejad, Saeed Shiry Ghidary

arxiv:1608.00514 v1 · 2016-07-29 · cs.NA · 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{N2QCKDEBS5ZEHIWUY6F4SJX2H3}

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	2026-05-18T00:50:13.594911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ea0250c81977243a2d4c78bc926fa3ec491dd273d48d1b14f9711f12767c490

Aliases

arxiv: 1608.00514 · arxiv_version: 1608.00514v1 · doi: 10.48550/arxiv.1608.00514 · pith_short_12: N2QCKDEBS5ZE · pith_short_16: N2QCKDEBS5ZEHIWU · pith_short_8: N2QCKDEB

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/N2QCKDEBS5ZEHIWUY6F4SJX2H3 \
  | 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: 6ea0250c81977243a2d4c78bc926fa3ec491dd273d48d1b14f9711f12767c490

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b50f33a3e9a12acf200660c1e3f98f98e4d86aeb4bc673dedc6ba58f9e760dd",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2016-07-29T15:17:16Z",
    "title_canon_sha256": "ae994d6e9b1c4b2b94e2b41d92ef29765887d5853d5d9d45d644ee197e3616fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.00514",
    "kind": "arxiv",
    "version": 1
  }
}