Pith Number

pith:UB6IEPWJ

pith:2018:UB6IEPWJQ4Y5XLT5VIDWQML6MF

not attested not anchored not stored refs pending

Pay Voice: Point of Sale Recognition for Visually Impaired People

Alan Godoy, Bruno Costa, Filipe Costa, Guilherme Folego, Luiz Pita

arxiv:1812.05740 v1 · 2018-12-14 · 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{UB6IEPWJQ4Y5XLT5VIDWQML6MF}

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	2026-05-17T23:58:18.355924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a07c823ec98731dbae7daa0768317e614e98b539546b8b77d20e6f8d009c5891

Aliases

arxiv: 1812.05740 · arxiv_version: 1812.05740v1 · doi: 10.48550/arxiv.1812.05740 · pith_short_12: UB6IEPWJQ4Y5 · pith_short_16: UB6IEPWJQ4Y5XLT5 · pith_short_8: UB6IEPWJ

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/UB6IEPWJQ4Y5XLT5VIDWQML6MF \
  | 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: a07c823ec98731dbae7daa0768317e614e98b539546b8b77d20e6f8d009c5891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1930d9937f40dd995a9f7069fd420d2dcd3f811cc1e9136df0aace718ce44ed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-12-14T00:04:32Z",
    "title_canon_sha256": "9db99f0de760a11292367cc63e193747c0c79545b9555e3e5cc3a984ea291872"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05740",
    "kind": "arxiv",
    "version": 1
  }
}