Pith Number

pith:WTQMA6NJ

pith:2023:WTQMA6NJKV4MY73AZZULTK6NN2

not attested not anchored not stored refs pending

Universal discretization and sparse sampling recovery

F. Dai, V. Temlyakov

arxiv:2301.05962 v2 · 2023-01-14 · math.NA · cs.IT · cs.NA · math.CA · math.FA · 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{WTQMA6NJKV4MY73AZZULTK6NN2}

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.

Cited by

1 paper in Pith

Some lower bounds for optimal sampling recovery of functions with mixed smoothness

Receipt and verification

First computed	2026-07-05T06:10:28.064578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4e0c079a95578cc7f60ce68b9abcd6ea812ef3fa10076dded9d84d521b93193

Aliases

arxiv: 2301.05962 · arxiv_version: 2301.05962v2 · doi: 10.48550/arxiv.2301.05962 · pith_short_12: WTQMA6NJKV4M · pith_short_16: WTQMA6NJKV4MY73A · pith_short_8: WTQMA6NJ

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/WTQMA6NJKV4MY73AZZULTK6NN2 \
  | 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: b4e0c079a95578cc7f60ce68b9abcd6ea812ef3fa10076dded9d84d521b93193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c81ac4d2391c8af6eeb24f73fbaacf58acf3a91ef3ba0da55b4aa43bba50ba95",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.NA",
      "math.CA",
      "math.FA",
      "math.IT"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-01-14T19:03:40Z",
    "title_canon_sha256": "e746771fcca3f2fb3ec49339c014d51de3df868cdaee6c5e9d372198fbb92f86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.05962",
    "kind": "arxiv",
    "version": 2
  }
}