Pith Number

pith:HG7H4QX2

pith:2016:HG7H4QX2BCQECMB5QEDKL24RFG

not attested not anchored not stored refs pending

Document image classification, with a specific view on applications of patent images

Gabriela Csurka

arxiv:1601.03295 v1 · 2016-01-13 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HG7H4QX2BCQECMB5QEDKL24RFG}

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	2026-05-18T01:22:54.871052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39be7e42fa08a041303d8106a5eb9129a23bc110c41bfe761d2215a10f0f1f4a

Aliases

arxiv: 1601.03295 · arxiv_version: 1601.03295v1 · doi: 10.48550/arxiv.1601.03295 · pith_short_12: HG7H4QX2BCQE · pith_short_16: HG7H4QX2BCQECMB5 · pith_short_8: HG7H4QX2

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/HG7H4QX2BCQECMB5QEDKL24RFG \
  | 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: 39be7e42fa08a041303d8106a5eb9129a23bc110c41bfe761d2215a10f0f1f4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9f1bc09d216f2123869caf087defcddee0adbabadac1b895b7f63a86ac719a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-01-13T16:02:13Z",
    "title_canon_sha256": "76bb26bc9ec736dcc3230c17399811620685c623ec07a49b51fc92e666543995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.03295",
    "kind": "arxiv",
    "version": 1
  }
}