Pith Number

pith:EYKM7VJZ

pith:2026:EYKM7VJZXFJO4U5HF4GJMVAQYI

not attested not anchored not stored refs pending

The Poisson Matrix $\mathbf{A}_2$ characteristic and the 3/2 blow up of the Hilbert transform

Alexander Volberg, Komla Domelevo, Sergei Treil, Spyridon Kakaroumpas, Stefanie Petermichl

arxiv:2605.19637 v1 · 2026-05-19 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYKM7VJZXFJO4U5HF4GJMVAQYI}

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	2026-05-20T01:05:55.371868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2614cfd539b952ee53a72f0c965410c22f8c7e0181de58ebed28fd73ad590a30

Aliases

arxiv: 2605.19637 · arxiv_version: 2605.19637v1 · doi: 10.48550/arxiv.2605.19637 · pith_short_12: EYKM7VJZXFJO · pith_short_16: EYKM7VJZXFJO4U5H · pith_short_8: EYKM7VJZ

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/EYKM7VJZXFJO4U5HF4GJMVAQYI \
  | 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: 2614cfd539b952ee53a72f0c965410c22f8c7e0181de58ebed28fd73ad590a30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caff81066a3c86cb6f56b8dc0853164884b245a0b091ac2549e53cf95e8c4cde",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2026-05-19T10:22:28Z",
    "title_canon_sha256": "48aedfa6c6dc712994b3e79c096c0240ce29a7f07894997b37fca1bbbe7b7127"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19637",
    "kind": "arxiv",
    "version": 1
  }
}