Pith Number

pith:SLDYYDUO

pith:2014:SLDYYDUOBI7ZFMDXNWEHGO3EBS

not attested not anchored not stored refs pending

The Breadth-one $D$-invariant Polynomial Subspace

Shugong Zhang, Xue Jiang

arxiv:1407.7381 v1 · 2014-07-28 · 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{SLDYYDUOBI7ZFMDXNWEHGO3EBS}

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	2026-05-18T02:46:23.255036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92c78c0e8e0a3f92b0776d88733b640cb3a7b95f2850883d629281d05c7fcf4c

Aliases

arxiv: 1407.7381 · arxiv_version: 1407.7381v1 · doi: 10.48550/arxiv.1407.7381 · pith_short_12: SLDYYDUOBI7Z · pith_short_16: SLDYYDUOBI7ZFMDX · pith_short_8: SLDYYDUO

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/SLDYYDUOBI7ZFMDXNWEHGO3EBS \
  | 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: 92c78c0e8e0a3f92b0776d88733b640cb3a7b95f2850883d629281d05c7fcf4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d33f67abaacd3d13efc67d44961ad14b08a1b9b50b195d6462c5d74d9ca1a37e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-07-28T11:13:34Z",
    "title_canon_sha256": "3b82e7df0c044be8f00b5c19911a7c2ca021b250b3e526cb288800d3bb3ca7ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7381",
    "kind": "arxiv",
    "version": 1
  }
}