Pith Number

pith:OPDUQJTF

pith:2018:OPDUQJTFPLNSMGYIWZZH6MVFWG

not attested not anchored not stored refs pending

Optimized Feedforward Neural Network Training for Efficient Brillouin Frequency Shift Retrieval in Fiber

Chongyu Lu, Jialin Jiang, Richeng Zhu, Yongxiang Chen, Yongxin Liang, Zinan Wang

arxiv:1812.07737 v1 · 2018-12-19 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPDUQJTFPLNSMGYIWZZH6MVFWG}

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	2026-05-17T23:57:56.173453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73c74826657adb261b08b6727f32a5b1b33fe3e8370dceaf36189a632f5f8acc

Aliases

arxiv: 1812.07737 · arxiv_version: 1812.07737v1 · doi: 10.48550/arxiv.1812.07737 · pith_short_12: OPDUQJTFPLNS · pith_short_16: OPDUQJTFPLNSMGYI · pith_short_8: OPDUQJTF

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/OPDUQJTFPLNSMGYIWZZH6MVFWG \
  | 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: 73c74826657adb261b08b6727f32a5b1b33fe3e8370dceaf36189a632f5f8acc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68a478c9bd7afeac4ede0d4da1e78176a88f5c2de2241288bcb80cf2f8957227",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-12-19T02:46:06Z",
    "title_canon_sha256": "deb9d7197dd7861774d229c247139957cb510503e52c2a67c6dac9c51dbe9a7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07737",
    "kind": "arxiv",
    "version": 1
  }
}