Pith Number

pith:KQBNTLRM

pith:2024:KQBNTLRMAIUSCHXHI3OE4ITBGD

not attested not anchored not stored refs pending

Weakly supervised covariance matrices alignment through Stiefel matrices estimation for MEG applications

Alexandre Gramfort, Antoine Collas, R\'emi Flamary

arxiv:2402.03345 v1 · 2024-01-24 · eess.SP · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KQBNTLRMAIUSCHXHI3OE4ITBGD}

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	2026-07-05T07:41:51.275491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5402d9ae2c0229211ee746dc4e226130c068170bffaf55c46ac81dac8ea4ba42

Aliases

arxiv: 2402.03345 · arxiv_version: 2402.03345v1 · doi: 10.48550/arxiv.2402.03345 · pith_short_12: KQBNTLRMAIUS · pith_short_16: KQBNTLRMAIUSCHXH · pith_short_8: KQBNTLRM

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/KQBNTLRMAIUSCHXHI3OE4ITBGD \
  | 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: 5402d9ae2c0229211ee746dc4e226130c068170bffaf55c46ac81dac8ea4ba42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92fcec9cc4152410961ebe879b7bfdb9fd7c4cce03058d08e15b25f605f11329",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2024-01-24T19:04:49Z",
    "title_canon_sha256": "1f59dc9ea4dd789a3654bcfee77050ad34659117b56a5fba34de8a74249c641b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.03345",
    "kind": "arxiv",
    "version": 1
  }
}