Pith Number

pith:CLDWS5XD

pith:2017:CLDWS5XDARBN5JKX2BJEVKC76E

not attested not anchored not stored refs pending

Inexpensive Student-fabricated Solar Panels and Some Related Classroom Measurements

Carl D. Ferkinhoff, Nathan T. Moore

arxiv:1712.04029 v1 · 2017-12-11 · 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{CLDWS5XDARBN5JKX2BJEVKC76E}

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	2026-05-18T00:28:09.504765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12c76976e30442dea557d0524aa85ff10baa483a2422f43ffa6bd49f50c61011

Aliases

arxiv: 1712.04029 · arxiv_version: 1712.04029v1 · doi: 10.48550/arxiv.1712.04029 · pith_short_12: CLDWS5XDARBN · pith_short_16: CLDWS5XDARBN5JKX · pith_short_8: CLDWS5XD

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/CLDWS5XDARBN5JKX2BJEVKC76E \
  | 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: 12c76976e30442dea557d0524aa85ff10baa483a2422f43ffa6bd49f50c61011

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef9d7c1db4c2874cf6af3f83f446b8bb3df78654cabd1d31d4ef84ba4d70100b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2017-12-11T21:09:27Z",
    "title_canon_sha256": "343595a617e7fdd811791f41e385fc86ede0c6030566691d218fc15f150e42e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04029",
    "kind": "arxiv",
    "version": 1
  }
}