Pith Number

pith:KBEERJBP

pith:2018:KBEERJBPMOTV6UPOAAYNPF6WJO

not attested not anchored not stored refs pending

The Howland - Kato Commutator Problem

Ira Herbst, Thomas L. Kriete

arxiv:1804.05227 v1 · 2018-04-14 · math-ph · math.FA · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KBEERJBPMOTV6UPOAAYNPF6WJO}

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	2026-05-18T00:18:30.273566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

504848a42f63a75f51ee0030d797d64ba97bd4e224ce645be21662c39613fa9a

Aliases

arxiv: 1804.05227 · arxiv_version: 1804.05227v1 · doi: 10.48550/arxiv.1804.05227 · pith_short_12: KBEERJBPMOTV · pith_short_16: KBEERJBPMOTV6UPO · pith_short_8: KBEERJBP

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/KBEERJBPMOTV6UPOAAYNPF6WJO \
  | 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: 504848a42f63a75f51ee0030d797d64ba97bd4e224ce645be21662c39613fa9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e0d722d502d37b178fda39cbd1efe707dec8ecae972bb9d26030e5a89c9ac78",
    "cross_cats_sorted": [
      "math.FA",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-04-14T14:27:38Z",
    "title_canon_sha256": "49c479648e911adb1ff291617b8336eb99868e6f075b66a414e026cb0a112b5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.05227",
    "kind": "arxiv",
    "version": 1
  }
}