Pith Number

pith:ZZ2Q3TYB

pith:2026:ZZ2Q3TYBYZO5KMOQGEOLK6PMHJ

not attested not anchored not stored refs pending

BCI-sift: An automated feature selection toolbox for Brain Computer Interface applications

Dirk Keller, Elena C Offenberg, Julia Berezutskaya, Mariska J Vansteensel, Nick F Ramsey, Zachary V Freudenburg

arxiv:2605.19646 v1 · 2026-05-19 · q-bio.NC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZZ2Q3TYBYZO5KMOQGEOLK6PMHJ}

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	2026-05-20T01:05:55.687766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce750dcf01c65dd531d0311cb579ec3a485fb312b613022e3aa994c60e2384ec

Aliases

arxiv: 2605.19646 · arxiv_version: 2605.19646v1 · doi: 10.48550/arxiv.2605.19646 · pith_short_12: ZZ2Q3TYBYZO5 · pith_short_16: ZZ2Q3TYBYZO5KMOQ · pith_short_8: ZZ2Q3TYB

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/ZZ2Q3TYBYZO5KMOQGEOLK6PMHJ \
  | 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: ce750dcf01c65dd531d0311cb579ec3a485fb312b613022e3aa994c60e2384ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c85609817eb1f559b3fb09b8cb97e46633df0a19e7f34ce98040cd7b0061f4f7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2026-05-19T10:32:36Z",
    "title_canon_sha256": "10a06cbe332a92abc478510cd0b908fa178269383c6898f0cceb089a12314ec4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19646",
    "kind": "arxiv",
    "version": 1
  }
}