Pith Number

pith:PGQLHDGR

pith:2026:PGQLHDGR2W2Y2KPDQNANF5W2ZD

not attested not anchored not stored refs pending

What Holds Back Brain-Computer Interfaces? Uncovering Challenges and Opportunities in BCI-controlled Games for Cerebral Palsy Rehabilitation

Bastian Ils{\o} Hougaard, Hendrik Knoche, Kirstine Johanne Stougaard Kleb{\ae}k, Kirstine Schultz Dalgaard, Mads Jochumsen

arxiv:2606.26951 v1 · 2026-06-25 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGQLHDGR2W2Y2KPDQNANF5W2ZD}

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	2026-06-26T01:16:04.950769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a0b38cd1d5b58d29e38340d2f6dac8f365f3439401bc689d2ee6b935a8b889

Aliases

arxiv: 2606.26951 · arxiv_version: 2606.26951v1 · doi: 10.48550/arxiv.2606.26951 · pith_short_12: PGQLHDGR2W2Y · pith_short_16: PGQLHDGR2W2Y2KPD · pith_short_8: PGQLHDGR

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/PGQLHDGR2W2Y2KPDQNANF5W2ZD \
  | 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: 79a0b38cd1d5b58d29e38340d2f6dac8f365f3439401bc689d2ee6b935a8b889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03e24fbc2828be1d944e1597da85c798ed4905b97bdcb8a89906a0863af22160",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2026-06-25T12:24:58Z",
    "title_canon_sha256": "ab90d303785bd4c316061b48c798fba35434193174c1fb564e96ecc39278a96e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26951",
    "kind": "arxiv",
    "version": 1
  }
}