Pith Number

pith:ALGLLTAA

pith:2025:ALGLLTAAHZZJ3YKZW3ZGSV5WYW

not attested not anchored not stored refs pending

NMF-FFB: Non-negative matrix factorization with feedforward-feedback structure

Kenichi Satoh

arxiv:2512.18250 v2 · 2025-12-20 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALGLLTAAHZZJ3YKZW3ZGSV5WYW}

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	2026-05-20T00:00:30.989553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02ccb5cc003e729de159b6f26957b6c5835821efe8c7c7608c647350f66bc157

Aliases

arxiv: 2512.18250 · arxiv_version: 2512.18250v2 · doi: 10.48550/arxiv.2512.18250 · pith_short_12: ALGLLTAAHZZJ · pith_short_16: ALGLLTAAHZZJ3YKZ · pith_short_8: ALGLLTAA

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/ALGLLTAAHZZJ3YKZW3ZGSV5WYW \
  | 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: 02ccb5cc003e729de159b6f26957b6c5835821efe8c7c7608c647350f66bc157

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed19f81222be404289865e3c2926ce6bcc7bfdd0c9461f2cf4b1b4c10243556b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-12-20T07:22:44Z",
    "title_canon_sha256": "80e3a9a1a222c409292cc61789a4412e3cca6fe195876163206436bb094c4072"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.18250",
    "kind": "arxiv",
    "version": 2
  }
}