Pith Number

pith:CLYS5XJO

pith:2024:CLYS5XJOD6DPY6F6WK7G3VHR6R

not attested not anchored not stored refs pending

Challenges in addressing student difficulties with quantum measurement of two-state quantum systems using a multiple-choice question sequence in online and in-person classes

Chandralekha Singh, Peter Hu, Yangqiuting Li

arxiv:2402.18072 v2 · 2024-02-28 · 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{CLYS5XJOD6DPY6F6WK7G3VHR6R}

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	2026-07-05T08:24:41.575130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12f12edd2e1f86fc78beb2be6dd4f1f46616d554ae18256f5288421d2d1eae11

Aliases

arxiv: 2402.18072 · arxiv_version: 2402.18072v2 · doi: 10.48550/arxiv.2402.18072 · pith_short_12: CLYS5XJOD6DP · pith_short_16: CLYS5XJOD6DPY6F6 · pith_short_8: CLYS5XJO

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/CLYS5XJOD6DPY6F6WK7G3VHR6R \
  | 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: 12f12edd2e1f86fc78beb2be6dd4f1f46616d554ae18256f5288421d2d1eae11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06b3ccfa78d85360048c13394b43c992c905bad1000cec3c8cf1ae33c115518b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2024-02-28T06:03:00Z",
    "title_canon_sha256": "97ed1df6a1fee3857169e414eb1f47f843bdcd70833b0102bae43e2acc50f610"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.18072",
    "kind": "arxiv",
    "version": 2
  }
}