Pith Number

pith:2XC7YW3M

pith:2021:2XC7YW3MBW7VMJYN62CIN44LC3

not attested not anchored not stored refs pending

Masked Conditional Random Fields for Sequence Labeling

Jianwei Qi, Shenghuan He, Songtao Sun, Tianwen Wei

arxiv:2103.10682 v1 · 2021-03-19 · cs.LG · 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{2XC7YW3MBW7VMJYN62CIN44LC3}

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	2026-07-05T02:24:43.851419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5c5fc5b6c0dbf56270df68486f38b16ea6759c58fd8b332ac08ffa227a591d3

Aliases

arxiv: 2103.10682 · arxiv_version: 2103.10682v1 · doi: 10.48550/arxiv.2103.10682 · pith_short_12: 2XC7YW3MBW7V · pith_short_16: 2XC7YW3MBW7VMJYN · pith_short_8: 2XC7YW3M

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/2XC7YW3MBW7VMJYN62CIN44LC3 \
  | 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: d5c5fc5b6c0dbf56270df68486f38b16ea6759c58fd8b332ac08ffa227a591d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "914de32ce49cfc2a49a65f403a3ad202ae71d062058e1e1e11cbf91e92a6f8ab",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-19T08:23:24Z",
    "title_canon_sha256": "30a1f56e0a764f3ce8b80ac5ad5a780ba75466d85747ddb0d83647851374765a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10682",
    "kind": "arxiv",
    "version": 1
  }
}