Pith Number

pith:YH35OUBN

pith:2014:YH35OUBNWBU42X3MWXONA2HI6Z

not attested not anchored not stored refs pending

On selfadjoint extensions of semigroups of partial isometries

Alexey I. Popov, Heydar Radjavi, Janez Bernik, Laurent W. Marcoux

arxiv:1411.5670 v1 · 2014-11-20 · math.OA · math.FA · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YH35OUBNWBU42X3MWXONA2HI6Z}

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	2026-05-18T02:33:24.126216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1f7d7502db069cd5f6cb5dcd068e8f65f8db23fc7ca66411b645a3ebdf87754

Aliases

arxiv: 1411.5670 · arxiv_version: 1411.5670v1 · doi: 10.48550/arxiv.1411.5670 · pith_short_12: YH35OUBNWBU4 · pith_short_16: YH35OUBNWBU42X3M · pith_short_8: YH35OUBN

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/YH35OUBNWBU42X3MWXONA2HI6Z \
  | 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: c1f7d7502db069cd5f6cb5dcd068e8f65f8db23fc7ca66411b645a3ebdf87754

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14f38f0ef61f7861c04675d4315b4f54eab35341459d5c2a8833ae5e9c3ffdfc",
    "cross_cats_sorted": [
      "math.FA",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2014-11-20T20:42:21Z",
    "title_canon_sha256": "5512fd433fc9aaa61aefa09e788d4202a372bbca5402e541c573640d605613de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5670",
    "kind": "arxiv",
    "version": 1
  }
}