Pith Number

pith:EOZRN5U2

pith:2020:EOZRN5U2LFQYFSUBPVJCKNEAME

not attested not anchored not stored refs pending

Deep Learning Approaches to Classification of Production Technology for 19th Century Books

Chanjong Im, John Rothman, Junaid Ghauri, Thomas Mandl

arxiv:2009.08219 v1 · 2020-09-17 · cs.CV · 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{EOZRN5U2LFQYFSUBPVJCKNEAME}

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	2026-07-05T01:36:11.684482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23b316f69a596182ca817d5225348061049d0a91d133ee9fc6493818ccdae7bb

Aliases

arxiv: 2009.08219 · arxiv_version: 2009.08219v1 · doi: 10.48550/arxiv.2009.08219 · pith_short_12: EOZRN5U2LFQY · pith_short_16: EOZRN5U2LFQYFSUB · pith_short_8: EOZRN5U2

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/EOZRN5U2LFQYFSUBPVJCKNEAME \
  | 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: 23b316f69a596182ca817d5225348061049d0a91d133ee9fc6493818ccdae7bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50941f534503b9245b26a647041c7f572deee0f54a60325fc3960745331e26d0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-09-17T11:39:35Z",
    "title_canon_sha256": "3f839279ee667b485962f54923ad62884c9c2563180b4b0a09d8bc07bf287f1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08219",
    "kind": "arxiv",
    "version": 1
  }
}