Pith Number

pith:OU745BUA

pith:2010:OU745BUAVVFF7X572D33DOTOD6

not attested not anchored not stored refs pending

The fundamental obscurity in quantum mechanics. Could the problem be considered universal?

A. V. Nikulov

arxiv:1012.4413 v1 · 2010-12-20 · 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{OU745BUAVVFF7X572D33DOTOD6}

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	2026-05-18T04:32:54.842463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

753fce8680ad4a5fdfbfd0f7b1ba6e1fa2fb274a4bef5a89b82fc2a1486e1850

Aliases

arxiv: 1012.4413 · arxiv_version: 1012.4413v1 · doi: 10.48550/arxiv.1012.4413 · pith_short_12: OU745BUAVVFF · pith_short_16: OU745BUAVVFF7X57 · pith_short_8: OU745BUA

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/OU745BUAVVFF7X572D33DOTOD6 \
  | 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: 753fce8680ad4a5fdfbfd0f7b1ba6e1fa2fb274a4bef5a89b82fc2a1486e1850

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40640183de8da78c563881f127de51de5c24870b1268985674a9d51acdf42e61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-12-20T17:24:21Z",
    "title_canon_sha256": "4fbc9b6eb999012a70516e57887799156368e6dd4f83302e04d5dd94064207c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4413",
    "kind": "arxiv",
    "version": 1
  }
}