Pith Number

pith:HVU5A7RR

pith:2017:HVU5A7RROTPMCFYDC5WB7NOCNJ

not attested not anchored not stored refs pending

Computational Eco-Systems for Handwritten Digits Recognition

Antonio Loquercio, Francesca Della Torre, Massimo Buscema

arxiv:1703.01872 v2 · 2017-03-06 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVU5A7RROTPMCFYDC5WB7NOCNJ}

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	2026-05-18T00:43:39.304389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d69d07e3174dec11703176c1fb5c26a7f3a2eddda196cbbea377b5751118f30

Aliases

arxiv: 1703.01872 · arxiv_version: 1703.01872v2 · doi: 10.48550/arxiv.1703.01872 · pith_short_12: HVU5A7RROTPM · pith_short_16: HVU5A7RROTPMCFYD · pith_short_8: HVU5A7RR

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/HVU5A7RROTPMCFYDC5WB7NOCNJ \
  | 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: 3d69d07e3174dec11703176c1fb5c26a7f3a2eddda196cbbea377b5751118f30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98559d89440a2f9f1edf99181d21b6aa74130bc0a7cdbf805ba61a7d03221f38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-03-06T13:59:39Z",
    "title_canon_sha256": "9b918ea176acfd8068a52b1878e002bd149ce5bee8cb60b33ab48f605e25dcb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01872",
    "kind": "arxiv",
    "version": 2
  }
}