Pith Number

pith:EKZAF6DC

pith:2016:EKZAF6DC4B7JMILI3G3MY7CJYI

not attested not anchored not stored refs pending

Learning from mistakes: The effect of students' written self-diagnoses on subsequent problem solving

Andrew Mason, Chandralekha Singh, Edit Yerushalmi, Elisheva Cohen

arxiv:1602.07253 v1 · 2016-02-23 · 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{EKZAF6DC4B7JMILI3G3MY7CJYI}

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	2026-05-18T01:20:06.829965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22b202f862e07e962168d9b6cc7c49c23824d8bfc497a7cb509e913c27ae3cbb

Aliases

arxiv: 1602.07253 · arxiv_version: 1602.07253v1 · doi: 10.48550/arxiv.1602.07253 · pith_short_12: EKZAF6DC4B7J · pith_short_16: EKZAF6DC4B7JMILI · pith_short_8: EKZAF6DC

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/EKZAF6DC4B7JMILI3G3MY7CJYI \
  | 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: 22b202f862e07e962168d9b6cc7c49c23824d8bfc497a7cb509e913c27ae3cbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b11f4fb472020a22b6f0e4bcb2c888a9f760ae9a7046b7a5422b921968177357",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2016-02-23T18:07:31Z",
    "title_canon_sha256": "c4a9804316ec6addfa988321decf7d4fb474993336de6632e9e3b91f0f92214e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07253",
    "kind": "arxiv",
    "version": 1
  }
}