Pith Number

pith:H3MITHDI

pith:2008:H3MITHDIGZMAZAB7J2SRHQZ2FU

not attested not anchored not stored refs pending

Polynomial operators and local smoothness classes on the unit interval, II

H. N. Mhaskar

arxiv:0811.2594 v1 · 2008-11-16 · math.CA · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3MITHDIGZMAZAB7J2SRHQZ2FU}

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	2026-06-03T23:06:09.254941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed8899c6836580c803f4ea513c33a2d31d6c957cd93a23bb2cd89471e328f1b

Aliases

arxiv: 0811.2594 · arxiv_version: 0811.2594v1 · doi: 10.48550/arxiv.0811.2594 · pith_short_12: H3MITHDIGZMA · pith_short_16: H3MITHDIGZMAZAB7 · pith_short_8: H3MITHDI

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/H3MITHDIGZMAZAB7J2SRHQZ2FU \
  | 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: 3ed8899c6836580c803f4ea513c33a2d31d6c957cd93a23bb2cd89471e328f1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3672afa48fd907742b3fa9c474851b75513c4f237a5bc52a6f15bd9702f36ca0",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2008-11-16T18:37:48Z",
    "title_canon_sha256": "d4815b5405663a4b274e54ccad049981d6e00cd347245d40e5e8ad561984b0f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2594",
    "kind": "arxiv",
    "version": 1
  }
}