Pith Number

pith:J5ZYMIXH

pith:2015:J5ZYMIXH3RCQSW6BYWWNL4VYBQ

not attested not anchored not stored refs pending

Three Hours a Day: Understanding Current Teen Practices of Smartphone Application Use

Beverly Harrison, Frank Bentley, Karen Church, Kent Lyons, Matthew Rafalow

arxiv:1510.05192 v1 · 2015-10-18 · cs.HC · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J5ZYMIXH3RCQSW6BYWWNL4VYBQ}

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	2026-05-18T01:29:37.868893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f738622e7dc45095bc1c5acd5f2b80c0f7884eb159ed97ac837b7f38be49c48

Aliases

arxiv: 1510.05192 · arxiv_version: 1510.05192v1 · doi: 10.48550/arxiv.1510.05192 · pith_short_12: J5ZYMIXH3RCQ · pith_short_16: J5ZYMIXH3RCQSW6B · pith_short_8: J5ZYMIXH

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/J5ZYMIXH3RCQSW6BYWWNL4VYBQ \
  | 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: 4f738622e7dc45095bc1c5acd5f2b80c0f7884eb159ed97ac837b7f38be49c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d79edac00f09e4385cb3bbecd35fd48647f1cb6b0d671474f4a8c8693d480e",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2015-10-18T02:31:50Z",
    "title_canon_sha256": "01e65e863b8f8dd21076867f664a9d41b49808b6b437fa7bf0c25c79431ddbee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.05192",
    "kind": "arxiv",
    "version": 1
  }
}