Pith Number

pith:PZYKXYCO

pith:2025:PZYKXYCON6AJUU6FXDGT7X4WNN

not attested not anchored not stored refs pending

The Cost of Avoiding Backpropagation

Hui Guan, Kunjal Panchal, Sunav Choudhary, Yuriy Brun

arxiv:2506.21833 v1 · 2025-06-27 · 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{PZYKXYCON6AJUU6FXDGT7X4WNN}

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

2 papers in Pith

Adaptive directional gradients for parameterised quantum circuits

On-Device Fine-Tuning via Backprop-Free Zeroth-Order Optimization

Receipt and verification

First computed	2026-07-05T11:28:02.021408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e70abe04e6f809a53c5b8cd3fdf966b653c3dff5fbcd9126b66f85393e5e583

Aliases

arxiv: 2506.21833 · arxiv_version: 2506.21833v1 · doi: 10.48550/arxiv.2506.21833 · pith_short_12: PZYKXYCON6AJ · pith_short_16: PZYKXYCON6AJUU6F · pith_short_8: PZYKXYCO

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/PZYKXYCON6AJUU6FXDGT7X4WNN \
  | 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: 7e70abe04e6f809a53c5b8cd3fdf966b653c3dff5fbcd9126b66f85393e5e583

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "605870f2faadb01538af2e63cf2d18cfec91af29cb777c5b64ee33115aafe5a8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-27T00:47:03Z",
    "title_canon_sha256": "2d8ba3c25b29b3b4f590cb500da2651cf2c1cac79cf9549584c94091d9c5ed50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.21833",
    "kind": "arxiv",
    "version": 1
  }
}