Pith Number

pith:3QOPKNI3

pith:2026:3QOPKNI35P73LYQEAZTIAN55VR

not attested not anchored not stored refs pending

Bias Analysis of L2 Speaking Assessment Systems Using Concept Activation Vectors

Arya Labroo, Kate Knill, Mengjie Qian

arxiv:2608.06300 v1 · 2026-08-06 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QOPKNI35P73LYQEAZTIAN55VR}

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	2026-08-07T01:41:19.470292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc1cf5351bebffb5e20406668037bdac6943982e5ab30687476652814347006d

Aliases

arxiv: 2608.06300 · arxiv_version: 2608.06300v1 · doi: 10.48550/arxiv.2608.06300 · pith_short_12: 3QOPKNI35P73 · pith_short_16: 3QOPKNI35P73LYQE · pith_short_8: 3QOPKNI3

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/3QOPKNI35P73LYQEAZTIAN55VR \
  | 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: dc1cf5351bebffb5e20406668037bdac6943982e5ab30687476652814347006d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d66b5328c82bdd3283a3f694b15c065c719e4194215de990fc8dcce2a70a1b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-08-06T17:20:58Z",
    "title_canon_sha256": "cd6a69aa3272a4886547d4bc03cc8e9a2ba838d2e02fd684dd8870c20dfdec06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06300",
    "kind": "arxiv",
    "version": 1
  }
}