Pith Number

pith:EPRNDWZU

pith:2021:EPRNDWZUJ3XC4XVFYF2XOOSO45

not attested not anchored not stored refs pending

Robust Contrastive Active Learning with Feature-guided Query Strategies

Alok Sinha, Mahesh Subedar, Nilesh Ahuja, Omesh Tickoo, Ranganath Krishnan, Ravi Iyer

arxiv:2109.06873 v2 · 2021-09-13 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPRNDWZUJ3XC4XVFYF2XOOSO45}

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	2026-07-05T04:48:08.034016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e2d1db344eee2e5ea5c175773a4ee76c70a46f5aaca8d6c20aa1599f4d8acf

Aliases

arxiv: 2109.06873 · arxiv_version: 2109.06873v2 · doi: 10.48550/arxiv.2109.06873 · pith_short_12: EPRNDWZUJ3XC · pith_short_16: EPRNDWZUJ3XC4XVF · pith_short_8: EPRNDWZU

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/EPRNDWZUJ3XC4XVFYF2XOOSO45 \
  | 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: 23e2d1db344eee2e5ea5c175773a4ee76c70a46f5aaca8d6c20aa1599f4d8acf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fc8913a3e1658d0f6e4483ffc98e8679e74668be72796a65d9dd0dc4c8914e2",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-13T21:09:21Z",
    "title_canon_sha256": "797e7aeb3aae2341e3c110f74752818ba7375161d8b9416eee93ae5d2858f48f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06873",
    "kind": "arxiv",
    "version": 2
  }
}