Pith Number

pith:OUP5WD42

pith:2018:OUP5WD42HIMSHPZ3YVW3PKSQQD

not attested not anchored not stored refs pending

Training of photonic neural networks through in situ backpropagation

Momchil Minkov, Shanhui Fan, Tyler W. Hughes, Yu Shi

arxiv:1805.09943 v1 · 2018-05-25 · physics.optics · cs.LG · cs.NE · physics.app-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUP5WD42HIMSHPZ3YVW3PKSQQD}

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	2026-05-18T00:09:59.007458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

751fdb0f9a3a1923bf3bc56db7aa5080e30f34263d1a274f09a59c2959ede92b

Aliases

arxiv: 1805.09943 · arxiv_version: 1805.09943v1 · doi: 10.48550/arxiv.1805.09943 · pith_short_12: OUP5WD42HIMS · pith_short_16: OUP5WD42HIMSHPZ3 · pith_short_8: OUP5WD42

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/OUP5WD42HIMSHPZ3YVW3PKSQQD \
  | 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: 751fdb0f9a3a1923bf3bc56db7aa5080e30f34263d1a274f09a59c2959ede92b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d02af0a20c6cdf86be0642a6f10c2d333bef4afad75ee0066cbd955d45dc08e4",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NE",
      "physics.app-ph",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-05-25T01:24:05Z",
    "title_canon_sha256": "115d8c5dfff1391204c0ccf9f3224cdc9731cc242d773e8f4e7bf4efdb0d915d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09943",
    "kind": "arxiv",
    "version": 1
  }
}