Pith Number

pith:7QGH23A4

pith:2019:7QGH23A4EIUN4X72Z3K7QAXU2L

not attested not anchored not stored refs pending

A Closer Look at Double Backpropagation

Christian Etmann

arxiv:1906.06637 v1 · 2019-06-16 · cs.LG · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QGH23A4EIUN4X72Z3K7QAXU2L}

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

Layer-wise Derivative Controlled Networks

Receipt and verification

First computed	2026-05-17T23:43:13.097328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc0c7d6c1c2228de5ffaced5f802f4d2d0a8af46efeb46e95b7a876163f9a89c

Aliases

arxiv: 1906.06637 · arxiv_version: 1906.06637v1 · doi: 10.48550/arxiv.1906.06637 · pith_short_12: 7QGH23A4EIUN · pith_short_16: 7QGH23A4EIUN4X72 · pith_short_8: 7QGH23A4

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/7QGH23A4EIUN4X72Z3K7QAXU2L \
  | 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: fc0c7d6c1c2228de5ffaced5f802f4d2d0a8af46efeb46e95b7a876163f9a89c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84c0cae09324696cd14df95a681667e45afa9c7adccc71fbe610d41d3546499b",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-16T03:11:08Z",
    "title_canon_sha256": "e4b434c8277ed7850bdde24a96790c08c3f8f7b1219326fa4c2eec26f523414e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06637",
    "kind": "arxiv",
    "version": 1
  }
}