Pith Number

pith:T57TC4KI

pith:2019:T57TC4KI5N2PF47COK2IGLGUYC

not attested not anchored not stored refs pending

Establishing Strong Baselines for the New Decade: Sequence Tagging, Syntactic and Semantic Parsing with BERT

Han He, Jinho D. Choi

arxiv:1908.04943 v4 · 2019-08-14 · 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{T57TC4KI5N2PF47COK2IGLGUYC}

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	2026-07-05T01:05:09.662643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f7f317148eb74f2f3e272b4832cd4c0bf656ef654ca069820d1054f52666081

Aliases

arxiv: 1908.04943 · arxiv_version: 1908.04943v4 · doi: 10.48550/arxiv.1908.04943 · pith_short_12: T57TC4KI5N2P · pith_short_16: T57TC4KI5N2PF47C · pith_short_8: T57TC4KI

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/T57TC4KI5N2PF47COK2IGLGUYC \
  | 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: 9f7f317148eb74f2f3e272b4832cd4c0bf656ef654ca069820d1054f52666081

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a371d3cddbf3abd141b2174ec86268aa162b4059f87f0589d4ca32138c5fbe3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-14T03:45:15Z",
    "title_canon_sha256": "b59942dac2b662eaffc412b0c6a23bf82138c2fdc953dbf3e151b8054c802c01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04943",
    "kind": "arxiv",
    "version": 4
  }
}