Pith Number

pith:ZM5OCNEA

pith:2013:ZM5OCNEAEH7MOHR24BVFFPEHDA

not attested not anchored not stored refs pending

My First Deep Learning System of 1991 + Deep Learning Timeline 1962-2013

J\"urgen Schmidhuber

arxiv:1312.5548 v1 · 2013-12-19 · 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{ZM5OCNEAEH7MOHR24BVFFPEHDA}

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	2026-05-18T03:04:14.575967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb3ae1348021fec71e3ae06a52bc8718074ca2b16b0449fc50512a1bb9d4a5e5

Aliases

arxiv: 1312.5548 · arxiv_version: 1312.5548v1 · doi: 10.48550/arxiv.1312.5548 · pith_short_12: ZM5OCNEAEH7M · pith_short_16: ZM5OCNEAEH7MOHR2 · pith_short_8: ZM5OCNEA

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/ZM5OCNEAEH7MOHR24BVFFPEHDA \
  | 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: cb3ae1348021fec71e3ae06a52bc8718074ca2b16b0449fc50512a1bb9d4a5e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da01ad0821d22be7c40d4112e127d8c61cd58e3231b5dc78d4250b5c2810afbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2013-12-19T13:45:45Z",
    "title_canon_sha256": "14a1a48c8d05b71191404ed1b71531c32076e8da660e4c4600b8d83e0bf78648"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5548",
    "kind": "arxiv",
    "version": 1
  }
}