Pith Number

pith:GR5A7LVG

pith:2015:GR5A7LVGPW56OTMJIQ5RNUASXI

not attested not anchored not stored refs pending

Reader-Aware Multi-Document Summarization via Sparse Coding

Hang Li, Lidong Bing, Piji Li, Wai Lam, Yi Liao

arxiv:1504.07324 v1 · 2015-04-28 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GR5A7LVGPW56OTMJIQ5RNUASXI}

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	2026-05-18T02:17:35.175794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

347a0faea67dbbe74d89443b16d012ba06a5c55be3a6a27e4afff41f9b53f37e

Aliases

arxiv: 1504.07324 · arxiv_version: 1504.07324v1 · doi: 10.48550/arxiv.1504.07324 · pith_short_12: GR5A7LVGPW56 · pith_short_16: GR5A7LVGPW56OTMJ · pith_short_8: GR5A7LVG

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/GR5A7LVGPW56OTMJIQ5RNUASXI \
  | 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: 347a0faea67dbbe74d89443b16d012ba06a5c55be3a6a27e4afff41f9b53f37e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa158eaa712a3059c79a37f6d6cf0d4766046cac11d94a8b1a3e6ec1d927f566",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-04-28T01:34:33Z",
    "title_canon_sha256": "7a4980b6c90062bdeb83ba37a9892717a8cbaa53de892d3f9d9dc1de289c81f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07324",
    "kind": "arxiv",
    "version": 1
  }
}