Pith Number

pith:UJFJEN5Z

pith:2008:UJFJEN5ZE5DWCSMFMBGKLDQH4X

not attested not anchored not stored refs pending

Proof of the Orthogonal Measurement Conjecture for Qubit States

Andreas Keil

arxiv:0809.0232 v1 · 2008-09-01 · 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{UJFJEN5ZE5DWCSMFMBGKLDQH4X}

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	2026-07-04T15:13:59.853539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a24a9237b92747614985604ca58e07e5cca59c4c85710d59fcbbb4345d81520c

Aliases

arxiv: 0809.0232 · arxiv_version: 0809.0232v1 · doi: 10.48550/arxiv.0809.0232 · pith_short_12: UJFJEN5ZE5DW · pith_short_16: UJFJEN5ZE5DWCSMF · pith_short_8: UJFJEN5Z

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/UJFJEN5ZE5DWCSMFMBGKLDQH4X \
  | 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: a24a9237b92747614985604ca58e07e5cca59c4c85710d59fcbbb4345d81520c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "503bdcb66597635aa90a152f5d7540e8ec615f224ec05ceb057c8f42cb806541",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-09-01T13:00:26Z",
    "title_canon_sha256": "b1f1888105cb31d866151cd6915d2eabe5d7dca85a85ed30ec3d731caf8aea50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0232",
    "kind": "arxiv",
    "version": 1
  }
}