Pith Number

pith:KKXHSQUA

pith:2011:KKXHSQUAZ5S7ANRJKXQAL36EG4

not attested not anchored not stored refs pending

Probing Student Understanding With Alternative Questioning Strategies

Brian W. Frank, Jeffrey M. Hawkins, John R. Thompson, Michael C. Wittmann, Thomas M. Wemyss

arxiv:1107.1825 v3 · 2011-07-09 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KKXHSQUAZ5S7ANRJKXQAL36EG4}

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	2026-05-18T02:01:20.837665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52ae794280cf65f0362955e005efc43736f23e94e2e287bc30932b77c4ea78c0

Aliases

arxiv: 1107.1825 · arxiv_version: 1107.1825v3 · doi: 10.48550/arxiv.1107.1825 · pith_short_12: KKXHSQUAZ5S7 · pith_short_16: KKXHSQUAZ5S7ANRJ · pith_short_8: KKXHSQUA

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/KKXHSQUAZ5S7ANRJKXQAL36EG4 \
  | 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: 52ae794280cf65f0362955e005efc43736f23e94e2e287bc30932b77c4ea78c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79303bb7f4cf01f3d823e020631c5571f1f33f2422803137c0ec77023ef8e722",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-07-09T23:50:09Z",
    "title_canon_sha256": "8ee91dec0cb08bc2250d7134349373fb8fb240138f73fadbee3f18b68efea4e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1825",
    "kind": "arxiv",
    "version": 3
  }
}