Pith Number

pith:ZLY2LEEI

pith:2025:ZLY2LEEICHPFRMFYCZ3SFQTKAW

not attested not anchored not stored refs pending

A Survey of Classification Tasks and Approaches for Legal Contracts

Aditya Joshi, Amrita Singh, Hye-Young Paik, Jiaojiao Jiang

arxiv:2507.21108 v1 · 2025-07-09 · 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{ZLY2LEEICHPFRMFYCZ3SFQTKAW}

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	2026-07-05T11:44:31.374624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caf1a5908811de58b0b8167722c26a05a9c29424ec915102a21bf0b612c072d9

Aliases

arxiv: 2507.21108 · arxiv_version: 2507.21108v1 · doi: 10.48550/arxiv.2507.21108 · pith_short_12: ZLY2LEEICHPF · pith_short_16: ZLY2LEEICHPFRMFY · pith_short_8: ZLY2LEEI

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/ZLY2LEEICHPFRMFYCZ3SFQTKAW \
  | 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: caf1a5908811de58b0b8167722c26a05a9c29424ec915102a21bf0b612c072d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c5cc0feb4bc93d03a2919bb013cadc58041d52fcdc04b3f6ba15a81c9c5585",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-09T08:22:42Z",
    "title_canon_sha256": "3064429b26d6408e40405e0f47de1bafb2d8c62ffdf71e67c2c3d0eb8ed93cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21108",
    "kind": "arxiv",
    "version": 1
  }
}