Pith Number

pith:KVACV4WX

pith:2018:KVACV4WX7LJR3ETW5SOLLL2LUJ

not attested not anchored not stored refs pending

Kid on The Phone! Toward Automatic Detection of Children on Mobile Devices

Aditi Roy, Nasir Memon, Toan Nguyen

arxiv:1808.01680 v1 · 2018-08-05 · cs.HC · 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{KVACV4WX7LJR3ETW5SOLLL2LUJ}

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	2026-05-18T00:08:52.194426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55402af2d7fad31d9276ec9cb5af4ba246e46815dcaa72073a00401a1890d8bf

Aliases

arxiv: 1808.01680 · arxiv_version: 1808.01680v1 · doi: 10.48550/arxiv.1808.01680 · pith_short_12: KVACV4WX7LJR · pith_short_16: KVACV4WX7LJR3ETW · pith_short_8: KVACV4WX

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/KVACV4WX7LJR3ETW5SOLLL2LUJ \
  | 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: 55402af2d7fad31d9276ec9cb5af4ba246e46815dcaa72073a00401a1890d8bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5e1f2e419300b63bfa76fb7c9007983c4a19da075cc04bd37e5faa5aa60954f",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2018-08-05T19:59:35Z",
    "title_canon_sha256": "d7ce21850536c51cb3aafa583aeb5ec7194567d336044a3f9e150dd9572df109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01680",
    "kind": "arxiv",
    "version": 1
  }
}