Pith Number

pith:QPWO5IQL

pith:2017:QPWO5IQL45KFMEXPZLSWFKWGQ5

not attested not anchored not stored refs pending

Proximal Backpropagation

Daniel Cremers, Michael Moeller, Thomas Frerix, Thomas M\"ollenhoff

arxiv:1706.04638 v3 · 2017-06-14 · 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{QPWO5IQL45KFMEXPZLSWFKWGQ5}

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	2026-05-18T00:22:59.260920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83eceea20be7545612efcae562aac687499ba800d58b370a9262242e7fdd1387

Aliases

arxiv: 1706.04638 · arxiv_version: 1706.04638v3 · doi: 10.48550/arxiv.1706.04638 · pith_short_12: QPWO5IQL45KF · pith_short_16: QPWO5IQL45KFMEXP · pith_short_8: QPWO5IQL

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/QPWO5IQL45KFMEXPZLSWFKWGQ5 \
  | 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: 83eceea20be7545612efcae562aac687499ba800d58b370a9262242e7fdd1387

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a33c772dfb793760a2904b39ce061d3ca2ae69a0fbbe4425e46a86275ea622a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-06-14T18:59:13Z",
    "title_canon_sha256": "cd600d1e7da07180c131a512f4170e765aa6ba040a46e867e28feb7a729a9348"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04638",
    "kind": "arxiv",
    "version": 3
  }
}