Pith Number

pith:IJRSHHOL

pith:2012:IJRSHHOLHCWXIH46RHV6GXRU3K

not attested not anchored not stored refs pending

Unitary equivalence of proper extensions of a symmetric operator and the Weyl function

Mark Malamud, Seppo Hassi, Vadim Mogilevskii

arxiv:1208.1201 v1 · 2012-08-06 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IJRSHHOLHCWXIH46RHV6GXRU3K}

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	2026-05-18T03:49:20.391688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4263239dcb38ad741f9e89ebe35e34da8ae2d41795cedf2f0f5590c333083e86

Aliases

arxiv: 1208.1201 · arxiv_version: 1208.1201v1 · doi: 10.48550/arxiv.1208.1201 · pith_short_12: IJRSHHOLHCWX · pith_short_16: IJRSHHOLHCWXIH46 · pith_short_8: IJRSHHOL

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/IJRSHHOLHCWXIH46RHV6GXRU3K \
  | 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: 4263239dcb38ad741f9e89ebe35e34da8ae2d41795cedf2f0f5590c333083e86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77c4e3c76c3132f8e4f137c7368b29361ca1b83e4b297c376daf185c2e954368",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-08-06T16:18:47Z",
    "title_canon_sha256": "a00841a0bd6eea7f8aace10e22ea37bf1d21aaa9d98abc4fdfe50debf2803510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1201",
    "kind": "arxiv",
    "version": 1
  }
}