Pith Number

pith:ETKQJUGT

pith:2018:ETKQJUGTSL5D7MNXELOJNHL36A

not attested not anchored not stored refs pending

An Improved Phrase-based Approach to Annotating and Summarizing Student Course Responses

Diane Litman, Fei Liu, Wencan Luo

arxiv:1805.10396 v1 · 2018-05-25 · 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{ETKQJUGTSL5D7MNXELOJNHL36A}

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	2026-05-18T00:14:52.669836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24d504d0d392fa3fb1b722dc969d7bf01264f784d58eb9328e26e2eccff8a3fe

Aliases

arxiv: 1805.10396 · arxiv_version: 1805.10396v1 · doi: 10.48550/arxiv.1805.10396 · pith_short_12: ETKQJUGTSL5D · pith_short_16: ETKQJUGTSL5D7MNX · pith_short_8: ETKQJUGT

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/ETKQJUGTSL5D7MNXELOJNHL36A \
  | 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: 24d504d0d392fa3fb1b722dc969d7bf01264f784d58eb9328e26e2eccff8a3fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b846cad0f4e70bb64c06f585046d52f792f241f639f09294ee1fef373995eee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-25T23:38:36Z",
    "title_canon_sha256": "0379d43afbac644970282c17535fb521074a886b53efcfbb29b5fff0b6ce1b8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10396",
    "kind": "arxiv",
    "version": 1
  }
}