Pith Number

pith:KD6QDXE2

pith:2013:KD6QDXE2ZZY5UO3UYD7W3LVPKS

not attested not anchored not stored refs pending

The distribution of the electric current in a watt-balance coil

Carlo Paolo Sasso, Enrico Massa, Giovanni Mana

arxiv:1307.4040 v2 · 2013-06-20 · physics.class-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{KD6QDXE2ZZY5UO3UYD7W3LVPKS}

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	2026-05-18T03:00:26.125267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50fd01dc9ace71da3b74c0ff6daeaf548b462d2a0e47e463c46d15210547f80d

Aliases

arxiv: 1307.4040 · arxiv_version: 1307.4040v2 · doi: 10.48550/arxiv.1307.4040 · pith_short_12: KD6QDXE2ZZY5 · pith_short_16: KD6QDXE2ZZY5UO3U · pith_short_8: KD6QDXE2

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/KD6QDXE2ZZY5UO3UYD7W3LVPKS \
  | 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: 50fd01dc9ace71da3b74c0ff6daeaf548b462d2a0e47e463c46d15210547f80d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90731e422c109c7b979570a38214da25133b00dfdd788b08497d5b3586708ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2013-06-20T06:59:50Z",
    "title_canon_sha256": "3b52c30f638ac4bbb2b860d37863143f08f987d8499a57a15e7c4f0d12b4a498"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4040",
    "kind": "arxiv",
    "version": 2
  }
}