Pith Number

pith:KCXIZ7IJ

pith:2023:KCXIZ7IJDFW6Z46RQMVF76MBHF

not attested not anchored not stored refs pending

From Sparse to Dense: GPT-4 Summarization with Chain of Density Prompting

Alexander Fabbri, Eric Lehman, Faisal Ladhak, Griffin Adams, No\'emie Elhadad

arxiv:2309.04269 v1 · 2023-09-08 · 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{KCXIZ7IJDFW6Z46RQMVF76MBHF}

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	2026-07-05T06:48:57.480008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50ae8cfd09196decf3d1832a5ff9813959d4519efac1161f16627f24d998fd7c

Aliases

arxiv: 2309.04269 · arxiv_version: 2309.04269v1 · doi: 10.48550/arxiv.2309.04269 · pith_short_12: KCXIZ7IJDFW6 · pith_short_16: KCXIZ7IJDFW6Z46R · pith_short_8: KCXIZ7IJ

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/KCXIZ7IJDFW6Z46RQMVF76MBHF \
  | 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: 50ae8cfd09196decf3d1832a5ff9813959d4519efac1161f16627f24d998fd7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4003b67d83db41b9ec3f44a4c5d1e52f686387dc33e5f1594ad790f52d3e2878",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2023-09-08T11:31:08Z",
    "title_canon_sha256": "d055fa83d104d427a3cec05c55fc8fb3e2a756e4ce69a2576e967b8fcbcf0a5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.04269",
    "kind": "arxiv",
    "version": 1
  }
}