Pith Number

pith:DPRZK2SY

pith:2003:DPRZK2SYT5V4TSDFXBAJ64BSZM

not attested not anchored not stored refs pending

Non-selfadjoint perturbations of selfadjoint operators in 2 dimensions I

Johannes Sjoestrand, Michael Hitrik

arxiv:math/0302297 v1 · 2003-02-25 · math.SP · math-ph · math.AP · 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{DPRZK2SYT5V4TSDFXBAJ64BSZM}

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	2026-05-18T01:38:29.160083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1be3956a589f6bc9c865b8409f7032cb0ea3e8b9a073eb8de3545cefbbdc55e3

Aliases

arxiv: math/0302297 · arxiv_version: math/0302297v1 · doi: 10.48550/arxiv.math/0302297 · pith_short_12: DPRZK2SYT5V4 · pith_short_16: DPRZK2SYT5V4TSDF · pith_short_8: DPRZK2SY

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/DPRZK2SYT5V4TSDFXBAJ64BSZM \
  | 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: 1be3956a589f6bc9c865b8409f7032cb0ea3e8b9a073eb8de3545cefbbdc55e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbf4f8bbf6ea51706e38cd74fae90dd2abb71d6609f30fa79c39543ab99b1180",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.SP",
    "submitted_at": "2003-02-25T00:07:49Z",
    "title_canon_sha256": "d80602296559c20865f4324ba0a01ac01794762fd84bc63d739c3db04ce3ddc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0302297",
    "kind": "arxiv",
    "version": 1
  }
}