Pith Number

pith:Y5CRRUMV

pith:2021:Y5CRRUMVXWDFADVT6SERB4EFGK

not attested not anchored not stored refs pending

Engineering an Intelligent Essay Scoring and Feedback System: An Experience Report

Akriti Chadda, Ian Gorton, Kelly Song, Raman Chandrasekar

arxiv:2103.13590 v1 · 2021-03-25 · cs.LG · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5CRRUMVXWDFADVT6SERB4EFGK}

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	2026-07-05T02:26:20.522305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74518d195bd86500eb3f48910f08532a335eb0796855723d9e37ae9dd6a6e8f

Aliases

arxiv: 2103.13590 · arxiv_version: 2103.13590v1 · doi: 10.48550/arxiv.2103.13590 · pith_short_12: Y5CRRUMVXWDF · pith_short_16: Y5CRRUMVXWDFADVT · pith_short_8: Y5CRRUMV

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/Y5CRRUMVXWDFADVT6SERB4EFGK \
  | 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: c74518d195bd86500eb3f48910f08532a335eb0796855723d9e37ae9dd6a6e8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b515b3611cd846ca5c8003352af4f810a34dd62f66d432b480a3809c7cd5fb51",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-25T03:46:05Z",
    "title_canon_sha256": "09679c9dc90b16fbed5ac6f43b0473a584eebcdd801c1042cc8f1d24e2b7f977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.13590",
    "kind": "arxiv",
    "version": 1
  }
}