Pith Number

pith:2QXRL3AO

pith:2014:2QXRL3AONBXDD2UU2WRQTE4GCN

not attested not anchored not stored refs pending

Peer Evaluation of Video Lab Reports in a Blended Introductory Physics Course

Brian D. Thoms, Edwin F. Greco, John M. Aiken, Marcos D. Caballero, Michael F. Schatz, Scott S. Douglas, Shih-Yin Lin

arxiv:1407.3248 v2 · 2014-07-11 · 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{2QXRL3AONBXDD2UU2WRQTE4GCN}

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	2026-05-18T00:02:50.254839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42f15ec0e686e31ea94d5a309938613506513f37f79eb9626f7364c73747c38

Aliases

arxiv: 1407.3248 · arxiv_version: 1407.3248v2 · doi: 10.48550/arxiv.1407.3248 · pith_short_12: 2QXRL3AONBXD · pith_short_16: 2QXRL3AONBXDD2UU · pith_short_8: 2QXRL3AO

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/2QXRL3AONBXDD2UU2WRQTE4GCN \
  | 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: d42f15ec0e686e31ea94d5a309938613506513f37f79eb9626f7364c73747c38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6de63100f17d8ecace8a9aedc9632effdf747ac22c07d3d7b35f19d38ab1d44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-07-11T18:45:35Z",
    "title_canon_sha256": "8ade3edfef5fd58bb911071d09e1439709afb71d6eb6bbd41e747cf6f20d2f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3248",
    "kind": "arxiv",
    "version": 2
  }
}