Pith Number

pith:KC5YMYBD

pith:2026:KC5YMYBDBPXNEMCORC6SXAGMDZ

not attested not anchored not stored refs pending

Talking Slide Avatars: Open-Source Multimodal Communication Approach for Teaching

Xinxing Wu

An open-source workflow lets instructors turn scripts and portraits into short talking avatars that restore presence and narrative flow to slide-based teaching.

arxiv:2604.23703 v2 · 2026-04-26 · cs.HC · cs.AI · cs.CY

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\usepackage{pith}
\pithnumber{KC5YMYBDBPXNEMCORC6SXAGMDZ}

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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.

Claims

C1strongest claim

short, transparent, and carefully designed avatars can humanize slide-based instruction while providing a reusable communicative layer for introductions, transitions, reminders, and recaps across online, hybrid, and asynchronous learning environments.

C2weakest assumption

The assumption that the integration of OpenVoice and Ditto-TalkingHead produces sufficiently natural and educationally effective talking avatars without requiring extensive technical skill or post-processing from typical instructors.

C3one line summary

The study documents an open-source pipeline that converts text scripts and portraits into talking-head videos to restore narrative and expressive elements in slide-based online teaching.

Receipt and verification

First computed	2026-05-26T01:02:34.365219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50bb8660230beed2304e88bd2b80cc1e675a90047630fdd31486337cf64bdbeb

Aliases

arxiv: 2604.23703 · arxiv_version: 2604.23703v2 · doi: 10.48550/arxiv.2604.23703 · pith_short_12: KC5YMYBDBPXN · pith_short_16: KC5YMYBDBPXNEMCO · pith_short_8: KC5YMYBD

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/KC5YMYBDBPXNEMCORC6SXAGMDZ \
  | 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: 50bb8660230beed2304e88bd2b80cc1e675a90047630fdd31486337cf64bdbeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3be1924583130e1745d3a70040a166d5a28587cbd050824f1910078765d5dd47",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2026-04-26T13:36:45Z",
    "title_canon_sha256": "5410f4e8844164b75d96c3578a16a418589853ca0e0e079708672f33724cb7f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.23703",
    "kind": "arxiv",
    "version": 2
  }
}