Pith Number

pith:ELFQ7IT2

pith:2025:ELFQ7IT2GVTTYAB7V3R52YYATY

not attested not anchored not stored refs pending

Brief introduction in greedy approximation

V. Temlyakov

arxiv:2502.13432 v1 · 2025-02-19 · 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{ELFQ7IT2GVTTYAB7V3R52YYATY}

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

Entropy numbers of classes defined by integral operators

Receipt and verification

First computed	2026-07-05T10:16:47.145853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22cb0fa27a35673c003faee3dd63009e3e4108d1c5db9327344dc5b458482aeb

Aliases

arxiv: 2502.13432 · arxiv_version: 2502.13432v1 · doi: 10.48550/arxiv.2502.13432 · pith_short_12: ELFQ7IT2GVTT · pith_short_16: ELFQ7IT2GVTTYAB7 · pith_short_8: ELFQ7IT2

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/ELFQ7IT2GVTTYAB7V3R52YYATY \
  | 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: 22cb0fa27a35673c003faee3dd63009e3e4108d1c5db9327344dc5b458482aeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c50c43a038156757f4d25d7ea4a1d666d91a9cad5469d9403e518270a56f05",
    "cross_cats_sorted": [
      "cs.NA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-02-19T05:07:50Z",
    "title_canon_sha256": "1abedd51f5d2b9f8f7709cc9d71118f9177ca50a5f250937c412ea44ab5eb309"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.13432",
    "kind": "arxiv",
    "version": 1
  }
}