Pith Number

pith:VQPNVDJZ

pith:2010:VQPNVDJZIFVPC2GCXH6RWNT6T5

not attested not anchored not stored refs pending

Casimir repulsion between metallic objects in vacuum

Alejandro W. Rodriguez, Alexander P. McCauley, Michael Levin, M. T. Homer Reid, Steven G. Johnson

arxiv:1003.3487 v2 · 2010-03-17 · cond-mat.stat-mech · quant-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{VQPNVDJZIFVPC2GCXH6RWNT6T5}

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	2026-05-18T04:14:46.257622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac1eda8d39416af168c2b9fd1b367e9f497f98fa95d3551277e67492da1c65ad

Aliases

arxiv: 1003.3487 · arxiv_version: 1003.3487v2 · doi: 10.48550/arxiv.1003.3487 · pith_short_12: VQPNVDJZIFVP · pith_short_16: VQPNVDJZIFVPC2GC · pith_short_8: VQPNVDJZ

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/VQPNVDJZIFVPC2GCXH6RWNT6T5 \
  | 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: ac1eda8d39416af168c2b9fd1b367e9f497f98fa95d3551277e67492da1c65ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d605c2c0cdae12abecef7803036fd102c5b142fe5b5d611772c49388fadcd58b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2010-03-17T22:25:29Z",
    "title_canon_sha256": "830aa3342141c33fdba71d8b10f6549f075981144218d22b0ae0c9014957a092"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3487",
    "kind": "arxiv",
    "version": 2
  }
}