Pith Number

pith:4GWY7E3H

pith:2013:4GWY7E3HRIVDCQJUEFZTNCOAWV

not attested not anchored not stored refs pending

Lip Localization and Viseme Classification for Visual Speech Recognition

Abdelmajid Ben Hamadou, Salah Werda, Walid Mahdi

arxiv:1301.4558 v1 · 2013-01-19 · 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{4GWY7E3HRIVDCQJUEFZTNCOAWV}

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	2026-05-18T03:33:25.228564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1ad8f93678a2a31413421733689c0b565cd8865e2157162ad5bf67c0a5cd2e2

Aliases

arxiv: 1301.4558 · arxiv_version: 1301.4558v1 · doi: 10.48550/arxiv.1301.4558 · pith_short_12: 4GWY7E3HRIVD · pith_short_16: 4GWY7E3HRIVDCQJU · pith_short_8: 4GWY7E3H

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/4GWY7E3HRIVDCQJUEFZTNCOAWV \
  | 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: e1ad8f93678a2a31413421733689c0b565cd8865e2157162ad5bf67c0a5cd2e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f395a05b0a51e8eb15312489b4cfc570362dca1d5726df16c17f4064b9952e80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-01-19T11:36:53Z",
    "title_canon_sha256": "976ffc4717e83d9dc6b021f12203ec3ab00d2ff363721f0970c174685e6524a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4558",
    "kind": "arxiv",
    "version": 1
  }
}