Pith Number

pith:R7Q6GFPI

pith:2019:R7Q6GFPIEJXAVTMPNCKGKSJR3P

not attested not anchored not stored refs pending

Automatic learner summary assessment for reading comprehension

Ekaterina Kochmar, Menglin Xia, Ted Briscoe

arxiv:1906.07555 v1 · 2019-06-18 · 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{R7Q6GFPIEJXAVTMPNCKGKSJR3P}

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	2026-05-17T23:43:07.549609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fe1e315e8226e0acd8f6894654931dbcee8e43dcfe080f72a0ff3fadde864d0

Aliases

arxiv: 1906.07555 · arxiv_version: 1906.07555v1 · doi: 10.48550/arxiv.1906.07555 · pith_short_12: R7Q6GFPIEJXA · pith_short_16: R7Q6GFPIEJXAVTMP · pith_short_8: R7Q6GFPI

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/R7Q6GFPIEJXAVTMPNCKGKSJR3P \
  | 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: 8fe1e315e8226e0acd8f6894654931dbcee8e43dcfe080f72a0ff3fadde864d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb184025a9d5b47ac8cad1440c6f7535c55f5995168de5ee6cb78fdeb95afb24",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-18T13:29:04Z",
    "title_canon_sha256": "91263fe1895fb07068048886dab6c3897668715db49bf5bd77c90cc6ef8885d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07555",
    "kind": "arxiv",
    "version": 1
  }
}