Pith Number

pith:6KEVTSVT

pith:2026:6KEVTSVT3FKWTNG3YSKQTKFEYU

not attested not anchored not stored refs pending

Can Local Learning Match Self-Supervised Backpropagation?

Ariane Delrocq, Guillaume Bellec, Wulfram Gerstner, Wu S. Zihan

arxiv:2601.21683 v2 · 2026-01-29 · 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{6KEVTSVT3FKWTNG3YSKQTKFEYU}

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	2026-06-03T02:05:45.173875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f28959cab3d95569b4dbc49509a8a4c516fa216727ada4831ceb3e9e3b7ad278

Aliases

arxiv: 2601.21683 · arxiv_version: 2601.21683v2 · doi: 10.48550/arxiv.2601.21683 · pith_short_12: 6KEVTSVT3FKW · pith_short_16: 6KEVTSVT3FKWTNG3 · pith_short_8: 6KEVTSVT

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/6KEVTSVT3FKWTNG3YSKQTKFEYU \
  | 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: f28959cab3d95569b4dbc49509a8a4c516fa216727ada4831ceb3e9e3b7ad278

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "888a4114eb586d2de16a3fe989483da395a3cbc20cfd1145fd30b056c079ef9f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-01-29T13:15:57Z",
    "title_canon_sha256": "82108f1b5b3a42dfce235abc3c4fb22819cc8c2e58509fc7db179b6811901267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.21683",
    "kind": "arxiv",
    "version": 2
  }
}