Pith Number

pith:ZJAY57UZ

pith:2018:ZJAY57UZJT547K3MESDUTFSWOW

not attested not anchored not stored refs pending

Exponential tractability of linear tensor product problems

Fred J. Hickernell, Henryk Wozniakowski, Peter Kritzer

arxiv:1811.05856 v1 · 2018-11-14 · 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{ZJAY57UZJT547K3MESDUTFSWOW}

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	2026-05-18T00:00:41.967253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca418efe994cfbcfab6c24874996567597128b3066366f31dc089f013339b807

Aliases

arxiv: 1811.05856 · arxiv_version: 1811.05856v1 · doi: 10.48550/arxiv.1811.05856 · pith_short_12: ZJAY57UZJT54 · pith_short_16: ZJAY57UZJT547K3M · pith_short_8: ZJAY57UZ

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/ZJAY57UZJT547K3MESDUTFSWOW \
  | 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: ca418efe994cfbcfab6c24874996567597128b3066366f31dc089f013339b807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c7a8efb9e80b9ca7a610bad1446d4a29c4c37214f55eedd5dd4ae565b6047d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-14T15:39:23Z",
    "title_canon_sha256": "12c81a2f592c75940fd03dbea68997363cf5f07de011c9bba6575ddcaf67c689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05856",
    "kind": "arxiv",
    "version": 1
  }
}