Pith Number

pith:XT4IL2V5

pith:2019:XT4IL2V52GCF6IYCQMRE3CTOV4

not attested not anchored not stored refs pending

A Joint Named-Entity Recognizer for Heterogeneous Tag-sets Using a Tag Hierarchy

Genady Beryozkin, Idan Szpektor, Oren Gilon, Tzvika Hartman, Yoel Drori

arxiv:1905.09135 v2 · 2019-05-22 · 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{XT4IL2V52GCF6IYCQMRE3CTOV4}

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	2026-05-17T23:42:58.171999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcf885eabdd1845f230283224d8a6eaf19564a3694f26ee4260cb0cf0fba0172

Aliases

arxiv: 1905.09135 · arxiv_version: 1905.09135v2 · doi: 10.48550/arxiv.1905.09135 · pith_short_12: XT4IL2V52GCF · pith_short_16: XT4IL2V52GCF6IYC · pith_short_8: XT4IL2V5

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/XT4IL2V52GCF6IYCQMRE3CTOV4 \
  | 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: bcf885eabdd1845f230283224d8a6eaf19564a3694f26ee4260cb0cf0fba0172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d87b6691eadaea7849ad782c715aebb1bfa5cce92b4ecc38b6029665fd6a343a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-22T13:40:38Z",
    "title_canon_sha256": "a342f8fb4b27e19ccc2a2484c7b8f5f9e743c8bd6c98e9f990be46f852bbbb66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09135",
    "kind": "arxiv",
    "version": 2
  }
}