Pith Number

pith:B2S75TDC

pith:2013:B2S75TDC3EIW5UABFDWCO452OT

not attested not anchored not stored refs pending

Observation of a quantum Cheshire Cat in a matter wave interferometer experiment

Alexandre Matzkin, Hartmut Lemmel, Hermann Geppert, Jeff Tollaksen, Stephan Sponar, Tobias Denkmayr, Yuji Hasegawa

arxiv:1312.3775 v1 · 2013-12-13 · 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{B2S75TDC3EIW5UABFDWCO452OT}

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	2026-05-18T02:45:31.770970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ea5fecc62d9116ed00128ec2773ba74ed92a00ed07e435c7b45e76683b8824b

Aliases

arxiv: 1312.3775 · arxiv_version: 1312.3775v1 · doi: 10.48550/arxiv.1312.3775 · pith_short_12: B2S75TDC3EIW · pith_short_16: B2S75TDC3EIW5UAB · pith_short_8: B2S75TDC

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/B2S75TDC3EIW5UABFDWCO452OT \
  | 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: 0ea5fecc62d9116ed00128ec2773ba74ed92a00ed07e435c7b45e76683b8824b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34c29f44ef7cfcfef70484d05baac672681795c79e35b4c6ea4cd2e5ecd48196",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-12-13T11:17:56Z",
    "title_canon_sha256": "4fcfc7d7df72416ddd4a28743cf1986c8db4126e241223977f38913dfacd5607"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3775",
    "kind": "arxiv",
    "version": 1
  }
}