Pith Number

pith:V5YR2GOM

pith:2019:V5YR2GOMLVL7HF36VTSB7EEWOE

not attested not anchored not stored refs pending

Audio Captcha Recognition Using RastaPLP Features by SVM

Ahmet Faruk Cakmak, Muhammet Balcilar

arxiv:1901.02153 v1 · 2019-01-08 · cs.LG · cs.SD · eess.AS · 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{V5YR2GOMLVL7HF36VTSB7EEWOE}

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.

Cited by

1 paper in Pith

Moravec's Paradox: Towards an Auditory Turing Test

Receipt and verification

First computed	2026-05-17T23:56:43.903027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af711d19cc5d57f3977eace41f90967129c699b9b896df55e99918b8acd1e8c8

Aliases

arxiv: 1901.02153 · arxiv_version: 1901.02153v1 · doi: 10.48550/arxiv.1901.02153 · pith_short_12: V5YR2GOMLVL7 · pith_short_16: V5YR2GOMLVL7HF36 · pith_short_8: V5YR2GOM

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/V5YR2GOMLVL7HF36VTSB7EEWOE \
  | 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: af711d19cc5d57f3977eace41f90967129c699b9b896df55e99918b8acd1e8c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86ce09333293d21167b399ca75964cd81ddf8e16ba429e5a1be84e4987b278bb",
    "cross_cats_sorted": [
      "cs.SD",
      "eess.AS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-08T04:44:37Z",
    "title_canon_sha256": "feb8303a54f7ca086fc794006c94b49043eb53de942505f812af43ebb1577334"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02153",
    "kind": "arxiv",
    "version": 1
  }
}