Pith Number

pith:4U7IV4GE

pith:2019:4U7IV4GEQLVYDH3VX2IRY44NV7

not attested not anchored not stored refs pending

An Evaluation of Transfer Learning for Classifying Sales Engagement Emails at Large Scale

Andrew Brooks, Li Dong, Pavel Dmitriev, Yifei Huang, Yong Liu

arxiv:1905.01971 v1 · 2019-04-19 · cs.CL · 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{4U7IV4GEQLVYDH3VX2IRY44NV7}

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	2026-05-17T23:46:56.843393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53e8af0c482eb819f75be911c738daff5fcacddc78cf0a5d10ee6ae3bc268ff

Aliases

arxiv: 1905.01971 · arxiv_version: 1905.01971v1 · doi: 10.48550/arxiv.1905.01971 · pith_short_12: 4U7IV4GEQLVY · pith_short_16: 4U7IV4GEQLVYDH3V · pith_short_8: 4U7IV4GE

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/4U7IV4GEQLVYDH3VX2IRY44NV7 \
  | 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: e53e8af0c482eb819f75be911c738daff5fcacddc78cf0a5d10ee6ae3bc268ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1dac374da77a5bfb99f46274330d8047e5b06f0708bd0f1b9c07d9bf4f3b62a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-19T18:11:54Z",
    "title_canon_sha256": "81e5de0ef7e3b02c8fb1b9ede7ea5a12d5da9f0bccb2b3b0593cf524fc9fe0d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01971",
    "kind": "arxiv",
    "version": 1
  }
}