Pith Number

pith:W5KHUIL5

pith:2015:W5KHUIL5ZP33TWB6QCX7JGU77P

not attested not anchored not stored refs pending

Contextuality, Pigeonholes, Cheshire Cats, Mean Kings, and Weak Values

Jeff Tollaksen, Mordecai Waegell

arxiv:1505.00098 v2 · 2015-05-01 · 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{W5KHUIL5ZP33TWB6QCX7JGU77P}

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	2026-05-18T01:33:07.696385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7547a217dcbf7b9d83e80aff49a9ffbc70a93bb9c2397f1b30d9e1f9ea17061

Aliases

arxiv: 1505.00098 · arxiv_version: 1505.00098v2 · doi: 10.48550/arxiv.1505.00098 · pith_short_12: W5KHUIL5ZP33 · pith_short_16: W5KHUIL5ZP33TWB6 · pith_short_8: W5KHUIL5

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/W5KHUIL5ZP33TWB6QCX7JGU77P \
  | 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: b7547a217dcbf7b9d83e80aff49a9ffbc70a93bb9c2397f1b30d9e1f9ea17061

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "781cd16c7579037300f5830eb1647c4dd2bc3d14cdb6c12a33ccc2b7870e1f08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-05-01T06:26:31Z",
    "title_canon_sha256": "4fa4c0f8de40851b08767585154c17e80b50c1be4076a2cf8654ba266494c787"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00098",
    "kind": "arxiv",
    "version": 2
  }
}