Pith Number

pith:P6ZTX52X

pith:2026:P6ZTX52XHIXZ2NAMTKZLRAF4PR

not attested not anchored not stored refs pending

TeachObs: A Human-Validated Benchmark for Multimodal Teaching Observation and Model Evaluation

Hyejin Han, Jinseo Lee, Scott Howard, Seobin Sohn, Unggi Lee, Yeil Jeong, Youngjin Yoo

arxiv:2605.30673 v1 · 2026-05-29 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6ZTX52XHIXZ2NAMTKZLRAF4PR}

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	2026-06-01T01:03:07.694596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fb33bf7573a2f9d340c9ab2b880bc7c71e166f49d8594421d04d309fe12234c

Aliases

arxiv: 2605.30673 · arxiv_version: 2605.30673v1 · doi: 10.48550/arxiv.2605.30673 · pith_short_12: P6ZTX52XHIXZ · pith_short_16: P6ZTX52XHIXZ2NAM · pith_short_8: P6ZTX52X

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/P6ZTX52XHIXZ2NAMTKZLRAF4PR \
  | 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: 7fb33bf7573a2f9d340c9ab2b880bc7c71e166f49d8594421d04d309fe12234c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d5c16d26be341355217bddcb2b10eec2223f84a1b76cbbc631271019cbe5ff",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-29T00:06:54Z",
    "title_canon_sha256": "0ec0a5568f079fe6dd4c1fc7ee4b78c02365f1e502a712102f3087abc41ebdfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30673",
    "kind": "arxiv",
    "version": 1
  }
}