Pith Number

pith:DQSTGOKV

pith:2025:DQSTGOKVOIUZNAQZ6PBHJXWI6V

not attested not anchored not stored refs pending

Off-diagonal matrix extrapolation for Muckenhoupt bases

David Cruz-Uribe, Fatih \c{S}irin

arxiv:2504.12407 v1 · 2025-04-16 · 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{DQSTGOKVOIUZNAQZ6PBHJXWI6V}

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	2026-07-05T10:50:15.893979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c253339557229968219f3c274dec8f56ae283faa8afcf85685892922eabf55b

Aliases

arxiv: 2504.12407 · arxiv_version: 2504.12407v1 · doi: 10.48550/arxiv.2504.12407 · pith_short_12: DQSTGOKVOIUZ · pith_short_16: DQSTGOKVOIUZNAQZ · pith_short_8: DQSTGOKV

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/DQSTGOKVOIUZNAQZ6PBHJXWI6V \
  | 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: 1c253339557229968219f3c274dec8f56ae283faa8afcf85685892922eabf55b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd8ce3b8a80c23cc2520c3cc56c16adffd852c5554c43a791e4c14d955c4465f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2025-04-16T18:16:20Z",
    "title_canon_sha256": "33e9e27a55dd7ce71b253d406e9ea9863ee526863d1601c769d68ee97c39ab8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12407",
    "kind": "arxiv",
    "version": 1
  }
}