Pith Number

pith:QZOCWKLZ

pith:2014:QZOCWKLZ5VOUSVVRZC6MBDPGH5

not attested not anchored not stored refs pending

Optimizing a Personalized Multigram Cellphone Keypad

Joonseok Lee, R. I. (Bob) McKay

arxiv:1412.1180 v1 · 2014-12-03 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZOCWKLZ5VOUSVVRZC6MBDPGH5}

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	2026-05-18T02:32:13.269170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

865c2b2979ed5d4956b1c8bcc08de63f4552f459d7e2e82efbb2322cb86c6d2f

Aliases

arxiv: 1412.1180 · arxiv_version: 1412.1180v1 · doi: 10.48550/arxiv.1412.1180 · pith_short_12: QZOCWKLZ5VOU · pith_short_16: QZOCWKLZ5VOUSVVR · pith_short_8: QZOCWKLZ

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/QZOCWKLZ5VOUSVVRZC6MBDPGH5 \
  | 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: 865c2b2979ed5d4956b1c8bcc08de63f4552f459d7e2e82efbb2322cb86c6d2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "658613f593881f19909e5466788ec929aa097804c51c5d4f8496546f66837261",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2014-12-03T03:59:25Z",
    "title_canon_sha256": "6a4123a1680e15bf003d11829e596fc9936e52799a6e3332ddca9aa499b48d2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1180",
    "kind": "arxiv",
    "version": 1
  }
}