Pith Number

pith:ITA3KFFI

pith:2012:ITA3KFFIJLRJIDT5YWYQYTRR5M

not attested not anchored not stored refs pending

Upper-division Student Understanding of Coulomb's Law: Difficulties with Continuous Charge Distributions

Bethany R. Wilcox, Marcos D. Caballero, Rachel E. Pepper, Steven J. Pollock

arxiv:1207.1283 v3 · 2012-07-05 · 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{ITA3KFFIJLRJIDT5YWYQYTRR5M}

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	2026-05-18T01:56:34.288930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44c1b514a84ae2940e7dc5b10c4e31eb090303aea58f3afa642e53e7e910e245

Aliases

arxiv: 1207.1283 · arxiv_version: 1207.1283v3 · doi: 10.48550/arxiv.1207.1283 · pith_short_12: ITA3KFFIJLRJ · pith_short_16: ITA3KFFIJLRJIDT5 · pith_short_8: ITA3KFFI

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/ITA3KFFIJLRJIDT5YWYQYTRR5M \
  | 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: 44c1b514a84ae2940e7dc5b10c4e31eb090303aea58f3afa642e53e7e910e245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02abe14fa3aec1140ec8ed76982efc4ec590795c58888c4905005ebefc5f54df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-07-05T15:12:58Z",
    "title_canon_sha256": "517191dc22c7ee52a0465837a0b8a5942437d6c07531ac6c012788f3ab13777a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1283",
    "kind": "arxiv",
    "version": 3
  }
}