Pith Number

pith:HLB3RGN7

pith:2011:HLB3RGN7VPAFCKXZHFR52A5LTC

not attested not anchored not stored refs pending

Coils and transformers - often used but seldomly explained correctly

Michael Lenz, Torsten Schmidt

arxiv:1107.2684 v2 · 2011-07-13 · physics.pop-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{HLB3RGN7VPAFCKXZHFR52A5LTC}

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	2026-05-18T03:56:22.606677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ac3b899bfabc0512af93963dd03ab98ac2d24bf64d72965f5be8683d4d656af

Aliases

arxiv: 1107.2684 · arxiv_version: 1107.2684v2 · doi: 10.48550/arxiv.1107.2684 · pith_short_12: HLB3RGN7VPAF · pith_short_16: HLB3RGN7VPAFCKXZ · pith_short_8: HLB3RGN7

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/HLB3RGN7VPAFCKXZHFR52A5LTC \
  | 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: 3ac3b899bfabc0512af93963dd03ab98ac2d24bf64d72965f5be8683d4d656af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a89d4d58749330660588ccb68e64aa8bc5b4c9d90c482a847077d76c8cfbdefe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2011-07-13T22:08:56Z",
    "title_canon_sha256": "3b67922f8350c5de102a1286653105d166bc293239d015633c34a8610b27e0ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2684",
    "kind": "arxiv",
    "version": 2
  }
}