Pith Number

pith:ZB6647DY

pith:2021:ZB6647DYUHKLYYLDH654UYTTIJ

not attested not anchored not stored refs pending

Active learning for reducing labeling effort in text classification tasks

Gideon Maillette de Buy Wenniger, Lambert Schomaker, Marco Wiering, Pieter Floris Jacobs

arxiv:2109.04847 v2 · 2021-09-10 · cs.CL · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZB6647DYUHKLYYLDH654UYTTIJ}

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	2026-07-05T03:29:03.381362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c87dee7c78a1d4bc61633fbbca6273427051b7057d35d240b1239f669f277342

Aliases

arxiv: 2109.04847 · arxiv_version: 2109.04847v2 · doi: 10.48550/arxiv.2109.04847 · pith_short_12: ZB6647DYUHKL · pith_short_16: ZB6647DYUHKLYYLD · pith_short_8: ZB6647DY

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/ZB6647DYUHKLYYLDH654UYTTIJ \
  | 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: c87dee7c78a1d4bc61633fbbca6273427051b7057d35d240b1239f669f277342

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7191afa6956397e09403ac7119e465466f1a53cff015576f26118f185025600b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-10T13:00:36Z",
    "title_canon_sha256": "2ce2114e7a21d74e16a301cfe728de62369f3155041bf2905dd2b0d03e8ce9a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.04847",
    "kind": "arxiv",
    "version": 2
  }
}