Pith Number

pith:KCZ3WLZN

pith:2012:KCZ3WLZN7LEYILWNVBK6S5CTAE

not attested not anchored not stored refs pending

Restrictions and extensions of semibounded operators

Feng Tian, Palle Jorgensen, Steen Pedersen

arxiv:1203.1104 v1 · 2012-03-06 · math.SP · 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{KCZ3WLZN7LEYILWNVBK6S5CTAE}

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	2026-05-18T03:55:46.442001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50b3bb2f2dfac9842ecda855e974530119796c41133e9f7af843e4df2619ab76

Aliases

arxiv: 1203.1104 · arxiv_version: 1203.1104v1 · doi: 10.48550/arxiv.1203.1104 · pith_short_12: KCZ3WLZN7LEY · pith_short_16: KCZ3WLZN7LEYILWN · pith_short_8: KCZ3WLZN

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/KCZ3WLZN7LEYILWNVBK6S5CTAE \
  | 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: 50b3bb2f2dfac9842ecda855e974530119796c41133e9f7af843e4df2619ab76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa20349036da17d980edfd5d37b732e0c056629ac3a982f3c067b7281d1beb78",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2012-03-06T05:38:33Z",
    "title_canon_sha256": "df6fee690cbd1be33022353bb07c280fc99b7772a704d4af60c5b55c02e1b193"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1104",
    "kind": "arxiv",
    "version": 1
  }
}