Pith Number

pith:JU7C5RSR

pith:2025:JU7C5RSRZXSEFH52UT7D4GKN5W

not attested not anchored not stored refs pending

Revisiting the Einstein-de Haas experiment: the Amp{\`e}re Museum's hidden treasure

Alfonso San Miguel (ILM), Bernard Pallandre

arxiv:2505.07826 v1 · 2025-04-23 · physics.hist-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{JU7C5RSRZXSEFH52UT7D4GKN5W}

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	2026-07-05T11:01:57.580232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d3e2ec651cde4429fbaa4fe3e194ded8b58ea437876011a496e7c7dba98af08

Aliases

arxiv: 2505.07826 · arxiv_version: 2505.07826v1 · doi: 10.48550/arxiv.2505.07826 · pith_short_12: JU7C5RSRZXSE · pith_short_16: JU7C5RSRZXSEFH52 · pith_short_8: JU7C5RSR

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/JU7C5RSRZXSEFH52UT7D4GKN5W \
  | 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: 4d3e2ec651cde4429fbaa4fe3e194ded8b58ea437876011a496e7c7dba98af08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c4f9730083967eea16dee5d0d0743f76bbd76950890c0841aab8ba137c1b233",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2025-04-23T10:40:34Z",
    "title_canon_sha256": "2832c86af2b8f110f3faef4637d668adebfe0368c56dfa212d00e3afe1acb9b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.07826",
    "kind": "arxiv",
    "version": 1
  }
}