Pith Number

pith:5T4FLEWB

pith:2020:5T4FLEWBA25NZUXQ4L2KYPPX3D

not attested not anchored not stored refs pending

OpinionDigest: A Simple Framework for Opinion Summarization

Stefanos Angelidis, Wang-Chiew Tan, Xiaolan Wang, Yoshihiko Suhara

arxiv:2005.01901 v1 · 2020-05-05 · 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{5T4FLEWBA25NZUXQ4L2KYPPX3D}

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	2026-07-05T01:00:20.593337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecf85592c106badcd2f0e2f4ac3df7d8ca22236dfcc87d7b1af7ec8899ef5f02

Aliases

arxiv: 2005.01901 · arxiv_version: 2005.01901v1 · doi: 10.48550/arxiv.2005.01901 · pith_short_12: 5T4FLEWBA25N · pith_short_16: 5T4FLEWBA25NZUXQ · pith_short_8: 5T4FLEWB

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/5T4FLEWBA25NZUXQ4L2KYPPX3D \
  | 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: ecf85592c106badcd2f0e2f4ac3df7d8ca22236dfcc87d7b1af7ec8899ef5f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd457935e0fbed5a0b42909f44fdb13482a60bd3a06661d66aa386e8285c0a5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-05-05T01:22:29Z",
    "title_canon_sha256": "9024ea715889aa9d3a2b5ac94689a95c5ae3430e3b9ada990566e52983b168b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01901",
    "kind": "arxiv",
    "version": 1
  }
}