Pith Number

pith:SW4CLLIS

pith:2023:SW4CLLISFSYQRDU5VBIJZN54O3

not attested not anchored not stored refs pending

The sparse regularity method with Schatten norms and entropy

Alexandru Pascadi

arxiv:2305.08567 v1 · 2023-05-15 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SW4CLLISFSYQRDU5VBIJZN54O3}

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	2026-07-05T06:10:03.445200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95b825ad122cb1088e9da8509cb7bc76ecdb7cc848e0acb454ed85dc5be16043

Aliases

arxiv: 2305.08567 · arxiv_version: 2305.08567v1 · doi: 10.48550/arxiv.2305.08567 · pith_short_12: SW4CLLISFSYQ · pith_short_16: SW4CLLISFSYQRDU5 · pith_short_8: SW4CLLIS

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/SW4CLLISFSYQRDU5VBIJZN54O3 \
  | 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: 95b825ad122cb1088e9da8509cb7bc76ecdb7cc848e0acb454ed85dc5be16043

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcd2ddad75d7ba127d7a3080aa59a3e07bc80062dce79ee9befcb69c8c8b1b90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-05-15T11:53:48Z",
    "title_canon_sha256": "945e705016becdd33799c092c01baad7c4502e56a7a7295cf4817c0d342dc2fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.08567",
    "kind": "arxiv",
    "version": 1
  }
}