Pith Number

pith:5UDPW2KQ

pith:2009:5UDPW2KQVH5EIJZKFVWDHEQURS

not attested not anchored not stored refs pending

Quantum Monty Hall problem under decoherence

M. K. Khan, M. Ramzan, Salman Khan

arxiv:0907.2293 v1 · 2009-07-14 · 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{5UDPW2KQVH5EIJZKFVWDHEQURS}

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	2026-05-18T02:13:03.321729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed06fb6950a9fa44272a2d6c3392148caaa610ab4ee0e1e438645adb499b1ea1

Aliases

arxiv: 0907.2293 · arxiv_version: 0907.2293v1 · doi: 10.48550/arxiv.0907.2293 · pith_short_12: 5UDPW2KQVH5E · pith_short_16: 5UDPW2KQVH5EIJZK · pith_short_8: 5UDPW2KQ

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/5UDPW2KQVH5EIJZKFVWDHEQURS \
  | 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: ed06fb6950a9fa44272a2d6c3392148caaa610ab4ee0e1e438645adb499b1ea1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cccbe139fcc0fda62e21a8331b6fc312a20e59ef2a03141cb3341f2236aa453",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-14T06:41:47Z",
    "title_canon_sha256": "ad5da8ac2d5a99739b80db0db234a22a5d5f316b4029b3e5ae9d9de070e4e284"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2293",
    "kind": "arxiv",
    "version": 1
  }
}