Pith Number

pith:QGJECOU4

pith:2018:QGJECOU44NJZYGZHCI34VO2HLO

not attested not anchored not stored refs pending

Non self-adjoint operators with real spectra and extensions of quantum mechanics

J. da Provid\^encia, N. Bebiano

arxiv:1808.08863 v1 · 2018-08-27 · 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{QGJECOU44NJZYGZHCI34VO2HLO}

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	2026-05-17T23:55:19.970624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8192413a9ce3539c1b271237cabb475b8c8e0f047fe77b92574961e9dd562f84

Aliases

arxiv: 1808.08863 · arxiv_version: 1808.08863v1 · doi: 10.48550/arxiv.1808.08863 · pith_short_12: QGJECOU44NJZ · pith_short_16: QGJECOU44NJZYGZH · pith_short_8: QGJECOU4

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/QGJECOU44NJZYGZHCI34VO2HLO \
  | 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: 8192413a9ce3539c1b271237cabb475b8c8e0f047fe77b92574961e9dd562f84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92586e0e0f252ac487ee07127025733acf923bacd8058ca006d50c2df2661268",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-27T14:34:01Z",
    "title_canon_sha256": "99cb19d6d7e6b43056b6d59affd0462d4ceeecd6ec7cd6675361437c462f54ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08863",
    "kind": "arxiv",
    "version": 1
  }
}