Pith Number

pith:UEUWQDZB

pith:2026:UEUWQDZBBMF6P5CSRGIC7TTULN

not attested not anchored not stored refs pending

On eigenvalues of self-adjoint extensions for defect larger than one

Annemarie Luger, Jakob Reiffenstein

arxiv:2606.04611 v1 · 2026-06-03 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEUWQDZBBMF6P5CSRGIC7TTULN}

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	2026-06-04T01:09:21.253013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a129680f210b0be7f45289902fce745b504bf393f565343ebe4300488ca1b1b3

Aliases

arxiv: 2606.04611 · arxiv_version: 2606.04611v1 · doi: 10.48550/arxiv.2606.04611 · pith_short_12: UEUWQDZBBMF6 · pith_short_16: UEUWQDZBBMF6P5CS · pith_short_8: UEUWQDZB

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/UEUWQDZBBMF6P5CSRGIC7TTULN \
  | 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: a129680f210b0be7f45289902fce745b504bf393f565343ebe4300488ca1b1b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e0ed47151ac4cb98ebbe0545c23aaee1e7b40e0877726f967dbac25b6823edb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2026-06-03T08:48:35Z",
    "title_canon_sha256": "b46fc70f6cf9975f4d43d96dfdc28f0cd7021384f87ac432a5673054be994bd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04611",
    "kind": "arxiv",
    "version": 1
  }
}