Pith Number

pith:HHM3VY5L

pith:2026:HHM3VY5LMRAGI6WLERX73A5RFQ

not attested not anchored not stored refs pending

Sampling and reconstruction of convex functions

Albert Cohen, Andrea Bonito, Guergana Petrova, Jonathan W. Siegel, Ronald DeVore, Wolfgang Dahmen

arxiv:2606.04190 v1 · 2026-06-02 · math.NA · cs.NA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHM3VY5LMRAGI6WLERX73A5RFQ}

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	2026-06-04T01:08:19.733776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39d9bae3ab6440647acb246ffd83b12c277659c8450521ecf5f0ab77b7a1719f

Aliases

arxiv: 2606.04190 · arxiv_version: 2606.04190v1 · doi: 10.48550/arxiv.2606.04190 · pith_short_12: HHM3VY5LMRAG · pith_short_16: HHM3VY5LMRAGI6WL · pith_short_8: HHM3VY5L

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/HHM3VY5LMRAGI6WLERX73A5RFQ \
  | 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: 39d9bae3ab6440647acb246ffd83b12c277659c8450521ecf5f0ab77b7a1719f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6be3ec6a7b024eb781d748f0ede22148cbce9a6c451705faffcaeed456c905",
    "cross_cats_sorted": [
      "cs.NA",
      "math.FA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-02T20:19:38Z",
    "title_canon_sha256": "1d3029fe05bfa113f99b7e61cc4a35b47ddf1298bd5588075944e56abd8bb8b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04190",
    "kind": "arxiv",
    "version": 1
  }
}