Pith Number

pith:JNBO3RZK

pith:2026:JNBO3RZKAH6SEBDLMSO6BE5T2X

not attested not anchored not stored refs pending

Conditioned Direct Feedback Alignment via Activity and Error Geometry

Bernardo L. Sabatini, Houman Safaai, Varun Reddy

arxiv:2607.18574 v1 · 2026-07-20 · cs.LG · cs.NE · 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{JNBO3RZKAH6SEBDLMSO6BE5T2X}

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	2026-07-22T00:22:54.888019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b42edc72a01fd22046b649de093b3d5d446a264f20ac3d3a428da9f0231c165

Aliases

arxiv: 2607.18574 · arxiv_version: 2607.18574v1 · doi: 10.48550/arxiv.2607.18574 · pith_short_12: JNBO3RZKAH6S · pith_short_16: JNBO3RZKAH6SEBDL · pith_short_8: JNBO3RZK

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/JNBO3RZKAH6SEBDLMSO6BE5T2X \
  | 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: 4b42edc72a01fd22046b649de093b3d5d446a264f20ac3d3a428da9f0231c165

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4200a9d0be1fd6f9c8037fd77a464a4a5809957ae1d4f236f54d564ae1335c9",
    "cross_cats_sorted": [
      "cs.NE",
      "q-bio.NC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-20T23:15:36Z",
    "title_canon_sha256": "1d5770676859c69070a8984074bdbabc780a31916024d0bcc820672846df17b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18574",
    "kind": "arxiv",
    "version": 1
  }
}