Pith Number

pith:XCPS4RAQ

pith:2021:XCPS4RAQPHUXTDOS7IQGT4SNJH

not attested not anchored not stored refs pending

BERTifying the Hidden Markov Model for Multi-Source Weakly Supervised Named Entity Recognition

Chao Zhang, Le Song, Lucas Liu, Pranav Shetty, Yinghao Li

arxiv:2105.12848 v2 · 2021-05-26 · 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{XCPS4RAQPHUXTDOS7IQGT4SNJH}

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	2026-07-05T02:44:38.142288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b89f2e441079e9798dd2fa2069f24d49e2ec545f141b5295ea1d8e0784ec8796

Aliases

arxiv: 2105.12848 · arxiv_version: 2105.12848v2 · doi: 10.48550/arxiv.2105.12848 · pith_short_12: XCPS4RAQPHUX · pith_short_16: XCPS4RAQPHUXTDOS · pith_short_8: XCPS4RAQ

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/XCPS4RAQPHUXTDOS7IQGT4SNJH \
  | 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: b89f2e441079e9798dd2fa2069f24d49e2ec545f141b5295ea1d8e0784ec8796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "709627bc4bdfffcb64e479e0e958f27d073af28ab513e67c3a2e27e0ef1bd11d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-05-26T21:18:48Z",
    "title_canon_sha256": "ff715d0fcb35dd383b7d03cd1073256c56ae877082a62bcf87112024388c2c71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.12848",
    "kind": "arxiv",
    "version": 2
  }
}