Pith Number

pith:PZSEZBL3

pith:2023:PZSEZBL3VFTNXW3FCDDBRYF3IX

not attested not anchored not stored refs pending

Forward Learning with Top-Down Feedback: Empirical and Analytical Characterization

Avi Cooper, Francesca Mignacco, Gabriel Kreiman, Giorgia Dellaferrera, Maria Refinetti, Martino Sorbaro, Ravi Srinivasan

arxiv:2302.05440 v2 · 2023-02-10 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZSEZBL3VFTNXW3FCDDBRYF3IX}

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.

Cited by

1 paper in Pith

HCL-FF: Hierarchical and Contrastive Learning for Forward-Forward Algorithm

Receipt and verification

First computed	2026-07-05T07:59:13.938363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e644c857ba966dbdb6510c618e0bb45ccc024a102739dd36d16b0816f4fb17b

Aliases

arxiv: 2302.05440 · arxiv_version: 2302.05440v2 · doi: 10.48550/arxiv.2302.05440 · pith_short_12: PZSEZBL3VFTN · pith_short_16: PZSEZBL3VFTNXW3F · pith_short_8: PZSEZBL3

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/PZSEZBL3VFTNXW3FCDDBRYF3IX \
  | 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: 7e644c857ba966dbdb6510c618e0bb45ccc024a102739dd36d16b0816f4fb17b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dded84fef5a7a592e20de566199185034ec85e85522cbf66ed35472ebfbcfb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-02-10T18:56:53Z",
    "title_canon_sha256": "cec035fd1a9b9ea7397199897ffc09ef6979efccd29c833bc8c1f75cf5a0c847"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.05440",
    "kind": "arxiv",
    "version": 2
  }
}