Pith Number

pith:QHAJWKJL

pith:2022:QHAJWKJLJDDQZFD7VBTKQRIU4C

not attested not anchored not stored refs pending

Learning efficient backprojections across cortical hierarchies in real time

Garibaldi Pineda Garc\'ia, Ismael Jaras, Kevin Max, Laura Kriener, Mihai A. Petrovici, Thomas Nowotny, Walter Senn

arxiv:2212.10249 v2 · 2022-12-20 · q-bio.NC · cs.LG · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHAJWKJLJDDQZFD7VBTKQRIU4C}

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	2026-07-05T07:40:20.169072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c09b292b48c70c947fa866a84514e083117710f4f8afb6c00fde729fed21f6

Aliases

arxiv: 2212.10249 · arxiv_version: 2212.10249v2 · doi: 10.48550/arxiv.2212.10249 · pith_short_12: QHAJWKJLJDDQ · pith_short_16: QHAJWKJLJDDQZFD7 · pith_short_8: QHAJWKJL

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/QHAJWKJLJDDQZFD7VBTKQRIU4C \
  | 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: 81c09b292b48c70c947fa866a84514e083117710f4f8afb6c00fde729fed21f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b772e805879d0c9664d11ab1cd289c555fa603d825212675ba611a774f3695",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2022-12-20T13:54:04Z",
    "title_canon_sha256": "3d00417b8de61b28adb061b3f568ea82264fe6b1cc3ece26edb054affec5af3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.10249",
    "kind": "arxiv",
    "version": 2
  }
}