Pith Number

pith:KZ7Q45CV

pith:2008:KZ7Q45CVU73VIZXDOK2SBHJIGG

not attested not anchored not stored refs pending

A Classroom Demonstration of Levitation and Suspension of a Superconductor over a Magnetic Track

Charles P. Strehlow, M. C. Sullivan

arxiv:0803.3090 v1 · 2008-03-20 · cond-mat.supr-con · 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{KZ7Q45CVU73VIZXDOK2SBHJIGG}

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	2026-07-04T17:23:09.206063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

567f0e7455a7f75466e372b5209d2831a6b0ac88ca149470ce968d5c02f59e39

Aliases

arxiv: 0803.3090 · arxiv_version: 0803.3090v1 · doi: 10.48550/arxiv.0803.3090 · pith_short_12: KZ7Q45CVU73V · pith_short_16: KZ7Q45CVU73VIZXD · pith_short_8: KZ7Q45CV

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/KZ7Q45CVU73VIZXDOK2SBHJIGG \
  | 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: 567f0e7455a7f75466e372b5209d2831a6b0ac88ca149470ce968d5c02f59e39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bee178b52290f222ab20983901b047854191cf66d529cf56cc1b238534d7e92",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2008-03-20T23:13:15Z",
    "title_canon_sha256": "300965b9f1dd22a0ddba606def7bdb8093822281284fb673c8e3c7a99b5d5d78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.3090",
    "kind": "arxiv",
    "version": 1
  }
}