Pith Number

pith:6RQCVLXL

pith:2016:6RQCVLXLGDQHG7JRC2U2K3HC5N

not attested not anchored not stored refs pending

Learning in the Machine: Random Backpropagation and the Deep Learning Channel

Peter Sadowski, Pierre Baldi, Zhiqin Lu

arxiv:1612.02734 v2 · 2016-12-08 · cs.LG · cs.AI · cs.NE

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

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	2026-05-18T00:27:28.340125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4602aaeeb30e0737d3116a9a56ce2eb43628ab88cde60f950736f35c875940c

Aliases

arxiv: 1612.02734 · arxiv_version: 1612.02734v2 · doi: 10.48550/arxiv.1612.02734 · pith_short_12: 6RQCVLXLGDQH · pith_short_16: 6RQCVLXLGDQHG7JR · pith_short_8: 6RQCVLXL

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/6RQCVLXLGDQHG7JRC2U2K3HC5N \
  | 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: f4602aaeeb30e0737d3116a9a56ce2eb43628ab88cde60f950736f35c875940c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "424aa9bee9b9b64918e725a7b37a71051a655e15fc4b5b77ba63e52db04712dd",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-12-08T17:15:45Z",
    "title_canon_sha256": "b3f17418ba385bb9b3c463e3f3a8775565c54f09d7c042d3346de4bfb611a2ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02734",
    "kind": "arxiv",
    "version": 2
  }
}