Pith Number

pith:KIJ7CZV3

pith:2018:KIJ7CZV3IYWGW7WFQLZBJA64FZ

not attested not anchored not stored refs pending

Hankel matrices acting on the Hardy space $H^1$ and on Dirichlet spaces

Daniel Girela, Noel Merch\'an

arxiv:1804.02227 v3 · 2018-04-06 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KIJ7CZV3IYWGW7WFQLZBJA64FZ}

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	2026-05-17T23:59:43.726281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5213f166bb462c6b7ec582f21483dc2e56b4794dc94e478a80ca8fcd5b2cba7e

Aliases

arxiv: 1804.02227 · arxiv_version: 1804.02227v3 · doi: 10.48550/arxiv.1804.02227 · pith_short_12: KIJ7CZV3IYWG · pith_short_16: KIJ7CZV3IYWGW7WF · pith_short_8: KIJ7CZV3

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/KIJ7CZV3IYWGW7WFQLZBJA64FZ \
  | 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: 5213f166bb462c6b7ec582f21483dc2e56b4794dc94e478a80ca8fcd5b2cba7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07c1f15847f4e45aa9b9157e9fbce4951e15f6297a488e2555445f0020a9aa60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-04-06T12:24:14Z",
    "title_canon_sha256": "6f49c622d2a3164abe260e20a75acdea45aeda4dc650ca94659a7a8c93e71269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02227",
    "kind": "arxiv",
    "version": 3
  }
}