Pith Number

pith:33C6I72W

pith:2009:33C6I72WEXFYLIY7WSJPDGDM74

not attested not anchored not stored refs pending

Tensor product approximations of high dimensional potentials

Flavia Lanzara, Gunther Schmidt, Vladimir Maz'ya

arxiv:0902.2054 v1 · 2009-02-12 · math.NA · cs.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{33C6I72WEXFYLIY7WSJPDGDM74}

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	2026-06-03T23:06:10.975593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec5e47f5625cb85a31fb492f1986cff148df5846f4c6790b7ba063680216880

Aliases

arxiv: 0902.2054 · arxiv_version: 0902.2054v1 · doi: 10.48550/arxiv.0902.2054 · pith_short_12: 33C6I72WEXFY · pith_short_16: 33C6I72WEXFYLIY7 · pith_short_8: 33C6I72W

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/33C6I72WEXFYLIY7WSJPDGDM74 \
  | 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: dec5e47f5625cb85a31fb492f1986cff148df5846f4c6790b7ba063680216880

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47e1d2cc8da2dfa7b7e7afae7fd2b84cf9752a02d76c6d9b17a67409de893915",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-02-12T09:03:53Z",
    "title_canon_sha256": "b2e54d43571c8a66098af9498fe9c3b531e9841bc1c00cec414a58e92c423d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2054",
    "kind": "arxiv",
    "version": 1
  }
}