Pith Number

pith:K4RW3MCR

pith:2026:K4RW3MCRXYIPORIYKZ5LVKZ5HL

not attested not anchored not stored refs pending

Gap-Aware Exact Nonnegative Matrix Factorization: A Two-Sided SVD Gauge and a Three-Regime W-Rank Taxonomy

Mithil Ramteke

arxiv:2606.25715 v1 · 2026-06-24 · math.NA · cs.NA · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4RW3MCRXYIPORIYKZ5LVKZ5HL}

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	2026-06-25T01:18:13.473015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57236db051be10f74518567abaab3d3ae472085f7fed22fe8aa0863eee9b20a7

Aliases

arxiv: 2606.25715 · arxiv_version: 2606.25715v1 · doi: 10.48550/arxiv.2606.25715 · pith_short_12: K4RW3MCRXYIP · pith_short_16: K4RW3MCRXYIPORIY · pith_short_8: K4RW3MCR

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/K4RW3MCRXYIPORIYKZ5LVKZ5HL \
  | 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: 57236db051be10f74518567abaab3d3ae472085f7fed22fe8aa0863eee9b20a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40daebee027062e21dc2a01e441075ed52773376cba4e524b25f6805946a0048",
    "cross_cats_sorted": [
      "cs.NA",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-24T11:31:05Z",
    "title_canon_sha256": "6ea0cf57fbb8db354a0f7d7f3c5107ef0335f6f4178732ea899ba6fe8f5ed331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25715",
    "kind": "arxiv",
    "version": 1
  }
}