Pith Number

pith:B4CU4XCV

pith:2020:B4CU4XCVYPSX5IFQL4AFOJGYZX

not attested not anchored not stored refs pending

A Dataset of German Legal Documents for Named Entity Recognition

Elena Leitner, Georg Rehm, Juli\'an Moreno-Schneider

arxiv:2003.13016 v1 · 2020-03-29 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4CU4XCVYPSX5IFQL4AFOJGYZX}

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	2026-07-05T00:51:21.884717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f054e5c55c3e57ea0b05f005724d8cdc006f8f64aab9a09551523b3dde06414

Aliases

arxiv: 2003.13016 · arxiv_version: 2003.13016v1 · doi: 10.48550/arxiv.2003.13016 · pith_short_12: B4CU4XCVYPSX · pith_short_16: B4CU4XCVYPSX5IFQ · pith_short_8: B4CU4XCV

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/B4CU4XCVYPSX5IFQL4AFOJGYZX \
  | 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: 0f054e5c55c3e57ea0b05f005724d8cdc006f8f64aab9a09551523b3dde06414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1738d0d6a91c8d33dd7c4b83717beb3705efb91e8930d09663ba189212a78539",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-03-29T13:20:43Z",
    "title_canon_sha256": "2ea34285e409ce81c461327b2cb2542c98a7612605fd932c2b3ffd3544656772"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.13016",
    "kind": "arxiv",
    "version": 1
  }
}