Pith Number

pith:CZWJJ4DK

pith:2025:CZWJJ4DKPG3FWBR2T3IGIOBZKP

not attested not anchored not stored refs pending

QF: Quick Feedforward AI Model Training without Gradient Back Propagation

Feng Qi

arxiv:2507.04300 v1 · 2025-07-06 · cs.LG · cs.AI · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZWJJ4DKPG3FWBR2T3IGIOBZKP}

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	2026-07-05T11:32:45.414947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

166c94f06a79b65b063a9ed064383953fb1698f9585965e0b428abb6c0587cdf

Aliases

arxiv: 2507.04300 · arxiv_version: 2507.04300v1 · doi: 10.48550/arxiv.2507.04300 · pith_short_12: CZWJJ4DKPG3F · pith_short_16: CZWJJ4DKPG3FWBR2 · pith_short_8: CZWJJ4DK

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/CZWJJ4DKPG3FWBR2T3IGIOBZKP \
  | 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: 166c94f06a79b65b063a9ed064383953fb1698f9585965e0b428abb6c0587cdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "221b35a7cfcd1cc75e6f5933de2c9c8a1aad7811ec731a7261f3beca520c8ae7",
    "cross_cats_sorted": [
      "cs.AI",
      "q-bio.NC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-06T08:56:41Z",
    "title_canon_sha256": "1ca0881d94c9d627b35ba473e95b5f0fdd49b259be46651d81f28abaaa0cac05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.04300",
    "kind": "arxiv",
    "version": 1
  }
}