Pith Number

pith:L7FLC2N3

pith:2022:L7FLC2N3UEHYPTAO54JRRKVMZF

not attested not anchored not stored refs pending

RNN Transducers for Nested Named Entity Recognition with constraints on alignment for long sequences

Hagen Soltau, Izhak Shafran, Laurent El Shafey, Mingqiu Wang

arxiv:2203.03543 v1 · 2022-02-08 · 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{L7FLC2N3UEHYPTAO54JRRKVMZF}

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	2026-07-05T04:02:35.364630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fcab169bba10f87cc0eef1318aaacc94ffe3e3200990904cb9e88fd5c06e3cf

Aliases

arxiv: 2203.03543 · arxiv_version: 2203.03543v1 · doi: 10.48550/arxiv.2203.03543 · pith_short_12: L7FLC2N3UEHY · pith_short_16: L7FLC2N3UEHYPTAO · pith_short_8: L7FLC2N3

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/L7FLC2N3UEHYPTAO54JRRKVMZF \
  | 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: 5fcab169bba10f87cc0eef1318aaacc94ffe3e3200990904cb9e88fd5c06e3cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0dd5940caed12daa711ac898987b123eafef6a88fa34556ea64c80498c755aa",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-02-08T05:38:20Z",
    "title_canon_sha256": "a7442378446d48e8761ae1f54c6ae4278f0712d138cb663f8e4be046e1e09888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.03543",
    "kind": "arxiv",
    "version": 1
  }
}