Pith Number

pith:ARYGWY5O

pith:2016:ARYGWY5ODYXXQ3BU43Y5ELBN3H

not attested not anchored not stored refs pending

TopicResponse: A Marriage of Topic Modelling and Rasch Modelling for Automatic Measurement in MOOCs

Benjamin I. P. Rubinstein, James Bailey, Jiazhen He, Rui Zhang, Sandra Milligan

arxiv:1607.08720 v2 · 2016-07-29 · cs.LG · cs.CL · cs.IR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ARYGWY5ODYXXQ3BU43Y5ELBN3H}

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	2026-05-18T00:48:28.079211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04706b63ae1e2f786c34e6f1d22c2dd9f9054c44c241c4d6e2f0d2f6a8a77a21

Aliases

arxiv: 1607.08720 · arxiv_version: 1607.08720v2 · doi: 10.48550/arxiv.1607.08720 · pith_short_12: ARYGWY5ODYXX · pith_short_16: ARYGWY5ODYXXQ3BU · pith_short_8: ARYGWY5O

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/ARYGWY5ODYXXQ3BU43Y5ELBN3H \
  | 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: 04706b63ae1e2f786c34e6f1d22c2dd9f9054c44c241c4d6e2f0d2f6a8a77a21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8debbd4e7b92f60e6c17f80592609b1c5755a09069ce8e96099c445174fd4074",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-07-29T08:17:45Z",
    "title_canon_sha256": "afaed9b2cc277bb518524bc2f09806372a95eca8575228c66f404fcbfab70a42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08720",
    "kind": "arxiv",
    "version": 2
  }
}