Pith Number

pith:ZUHAW3ZJ

pith:2009:ZUHAW3ZJYKIO2SOUZURVP2SM7C

not attested not anchored not stored refs pending

Right limits and reflectionless measures for CMV matrices

Eric Ryckman, Jonathan Breuer, Maxim Zinchenko

arxiv:0902.1571 v1 · 2009-02-10 · math.SP · math-ph · 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{ZUHAW3ZJYKIO2SOUZURVP2SM7C}

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	2026-05-18T02:14:48.579352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd0e0b6f29c290ed49d4cd2357ea4cf88e56c6a75a7559ef2de5b05ef31de1aa

Aliases

arxiv: 0902.1571 · arxiv_version: 0902.1571v1 · doi: 10.48550/arxiv.0902.1571 · pith_short_12: ZUHAW3ZJYKIO · pith_short_16: ZUHAW3ZJYKIO2SOU · pith_short_8: ZUHAW3ZJ

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/ZUHAW3ZJYKIO2SOUZURVP2SM7C \
  | 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: cd0e0b6f29c290ed49d4cd2357ea4cf88e56c6a75a7559ef2de5b05ef31de1aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdf5f9ed4511684e149a56670211c34046e6d729426b4fa4deb12ae22cf64b74",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-02-10T01:38:06Z",
    "title_canon_sha256": "e3f25c3bcde59a4a6d2409657decc63f667be2e1de54663d81f448a9bfe69800"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1571",
    "kind": "arxiv",
    "version": 1
  }
}