Pith Number

pith:NWRDWZY6

pith:2014:NWRDWZY6INHVA2T3FNCK5ZPR6Z

not attested not anchored not stored refs pending

An Empirical Study of the Effect of Granting Multiple Tries for Online Homework

Gerd Kortemeyer

arxiv:1407.2276 v1 · 2014-07-08 · 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{NWRDWZY6INHVA2T3FNCK5ZPR6Z}

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	2026-05-18T02:48:02.695423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6da23b671e434f506a7b2b44aee5f1f677191dd69d9b5390dce86dd6cb9cbfea

Aliases

arxiv: 1407.2276 · arxiv_version: 1407.2276v1 · doi: 10.48550/arxiv.1407.2276 · pith_short_12: NWRDWZY6INHV · pith_short_16: NWRDWZY6INHVA2T3 · pith_short_8: NWRDWZY6

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/NWRDWZY6INHVA2T3FNCK5ZPR6Z \
  | 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: 6da23b671e434f506a7b2b44aee5f1f677191dd69d9b5390dce86dd6cb9cbfea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1c71c6bff93f5fc0fd6aaa9c8d8d54aff96cabe4eccb3bb4f6f5becb984001c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-07-08T21:21:23Z",
    "title_canon_sha256": "a2f684fe23f563273ba318f61730c203e04ce556c21b1f2d35fe76ec71c53a39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.2276",
    "kind": "arxiv",
    "version": 1
  }
}