Pith Number

pith:OZQHO7X4

pith:2018:OZQHO7X4U4U7DMV35CQQWGBLIS

not attested not anchored not stored refs pending

Conditioning of partial nonuniform Fourier matrices with clustered nodes

Dmitry Batenkov, Gil Goldman, Laurent Demanet, Yosef Yomdin

arxiv:1809.00658 v2 · 2018-09-03 · math.NA · cs.IT · cs.NA · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZQHO7X4U4U7DMV35CQQWGBLIS}

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	2026-05-17T23:42:58.856758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7660777efca729f1b2bbe8a10b182b44901de284e7b317cc5afc5fa68b54a960

Aliases

arxiv: 1809.00658 · arxiv_version: 1809.00658v2 · doi: 10.48550/arxiv.1809.00658 · pith_short_12: OZQHO7X4U4U7 · pith_short_16: OZQHO7X4U4U7DMV3 · pith_short_8: OZQHO7X4

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/OZQHO7X4U4U7DMV35CQQWGBLIS \
  | 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: 7660777efca729f1b2bbe8a10b182b44901de284e7b317cc5afc5fa68b54a960

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f0326a575f24c731dac6a2e6af492800daacc81127a05d92daa273542895d01",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.NA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-03T17:02:55Z",
    "title_canon_sha256": "a928e2c7c683e717a41e03e2286d6f86f86d1516fba28fe85724fadf2f1a313a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00658",
    "kind": "arxiv",
    "version": 2
  }
}