Pith Number

pith:ZP6MPAY7

pith:2026:ZP6MPAY7ZUUWP4TDGHTP3E6Y23

not attested not anchored not stored refs pending

Tucker Tensor Train Taylor Series

Blake Christierson, Nick Alger, Omar Ghattas, Peng Chen

arxiv:2603.21141 v2 · 2026-03-22 · 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{ZP6MPAY7ZUUWP4TDGHTP3E6Y23}

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

2 papers in Pith

Universal Approximation of Nonlinear Operators and Their Derivatives

Receipt and verification

First computed	2026-07-13T00:17:08.754264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbfcc7831fcd2967f26331e6fd93d8d6d3b68e3c405cdd29fd64ef019418b08a

Aliases

arxiv: 2603.21141 · arxiv_version: 2603.21141v2 · doi: 10.48550/arxiv.2603.21141 · pith_short_12: ZP6MPAY7ZUUW · pith_short_16: ZP6MPAY7ZUUWP4TD · pith_short_8: ZP6MPAY7

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/ZP6MPAY7ZUUWP4TDGHTP3E6Y23 \
  | 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: cbfcc7831fcd2967f26331e6fd93d8d6d3b68e3c405cdd29fd64ef019418b08a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c17ff583bacf692416684ad169b9af8a2b0294e8815b3a95a793f3a89414299",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-03-22T09:33:15Z",
    "title_canon_sha256": "99abf2025085fc01d5eb5b1ef38aed309ed30811cb8e5848a51c067b42979afd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.21141",
    "kind": "arxiv",
    "version": 2
  }
}