Pith Number

pith:RAXUNVWP

pith:2012:RAXUNVWPJUX2ND3DFYZ42K3DR6

not attested not anchored not stored refs pending

On similarity of quasinilpotent operators

Stanislav Shkarin

arxiv:1209.1461 v1 · 2012-09-07 · 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{RAXUNVWPJUX2ND3DFYZ42K3DR6}

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	2026-05-18T03:46:04.708011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

882f46d6cf4d2fa68f632e33cd2b638fa058717e981f29ec94d26c9a07e03f63

Aliases

arxiv: 1209.1461 · arxiv_version: 1209.1461v1 · doi: 10.48550/arxiv.1209.1461 · pith_short_12: RAXUNVWPJUX2 · pith_short_16: RAXUNVWPJUX2ND3D · pith_short_8: RAXUNVWP

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/RAXUNVWPJUX2ND3DFYZ42K3DR6 \
  | 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: 882f46d6cf4d2fa68f632e33cd2b638fa058717e981f29ec94d26c9a07e03f63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6bc8e083d32fe8062bc85c3c227719b32ff475bb7a4f7edc1467d1ac403e6e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-09-07T08:37:56Z",
    "title_canon_sha256": "e133afd7855fb34a2f417729c0f065c3dffb6dfd0a42e2e4e467778e9aa6c55d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1461",
    "kind": "arxiv",
    "version": 1
  }
}