Pith Number

pith:ESPY2YZC

pith:2019:ESPY2YZC64D4PU76GW3SNZLD6V

not attested not anchored not stored refs pending

Measuring the Faraday effect in olive oil using permanent magnets and Malus' law

Charles S. Adams, Daniel L. Carr, Ifan G. Hughes, Nicholas L. R. Spong

arxiv:1908.08120 v2 · 2019-08-20 · physics.ins-det · physics.ed-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ESPY2YZC64D4PU76GW3SNZLD6V}

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	2026-07-05T00:34:16.905706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

249f8d6322f707c7d3fe35b726e563f56b5e4950b541e3da722469b521c5e65d

Aliases

arxiv: 1908.08120 · arxiv_version: 1908.08120v2 · doi: 10.48550/arxiv.1908.08120 · pith_short_12: ESPY2YZC64D4 · pith_short_16: ESPY2YZC64D4PU76 · pith_short_8: ESPY2YZC

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/ESPY2YZC64D4PU76GW3SNZLD6V \
  | 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: 249f8d6322f707c7d3fe35b726e563f56b5e4950b541e3da722469b521c5e65d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "297503f4f9675ddba93fd1ec76d9d26330d1d7a6083d4800fc5526b94f050961",
    "cross_cats_sorted": [
      "physics.ed-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2019-08-20T17:26:46Z",
    "title_canon_sha256": "54d2ab642514cd32879739f1d441d5e369fb38a9fe4f519690ea7d6b3021476e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08120",
    "kind": "arxiv",
    "version": 2
  }
}