Pith Number

pith:ZNJSF5DM

pith:2020:ZNJSF5DM6R72XIS6GETU2P2555

not attested not anchored not stored refs pending

Perturbed Masking: Parameter-free Probing for Analyzing and Interpreting BERT

Ben Kao, Qun Liu, Yun Chen, Zhiyong Wu

arxiv:2004.14786 v3 · 2020-04-30 · 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{ZNJSF5DM6R72XIS6GETU2P2555}

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	2026-07-05T02:44:02.525586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb5322f46cf47faba25e31274d3f5def5b651a9cc692684cc89465c5bb9bd134

Aliases

arxiv: 2004.14786 · arxiv_version: 2004.14786v3 · doi: 10.48550/arxiv.2004.14786 · pith_short_12: ZNJSF5DM6R72 · pith_short_16: ZNJSF5DM6R72XIS6 · pith_short_8: ZNJSF5DM

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/ZNJSF5DM6R72XIS6GETU2P2555 \
  | 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: cb5322f46cf47faba25e31274d3f5def5b651a9cc692684cc89465c5bb9bd134

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc456109242d967e3eac58f1ad15eed5ddfb426cdc7fa4140fd8190f1332faa5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-04-30T14:02:29Z",
    "title_canon_sha256": "b8be663d71c3858acc857fe7f4626b34de66caac891afb9239dcf269da387a20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.14786",
    "kind": "arxiv",
    "version": 3
  }
}