Pith Number

pith:B4JI3JVX

pith:2012:B4JI3JVXXEEFNLUNSKQJS7ZXGK

not attested not anchored not stored refs pending

Active Learning for Crowd-Sourced Databases

Barzan Mozafari, Michael I. Jordan, Michael J. Franklin, Purnamrita Sarkar, Samuel Madden

arxiv:1209.3686 v4 · 2012-09-17 · cs.LG · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4JI3JVXXEEFNLUNSKQJS7ZXGK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:30:47.886594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f128da6b7b90856ae8d92a0997f3732865bbcc4bd05d8814fec5aa66c3f06cf

Aliases

arxiv: 1209.3686 · arxiv_version: 1209.3686v4 · doi: 10.48550/arxiv.1209.3686 · pith_short_12: B4JI3JVXXEEF · pith_short_16: B4JI3JVXXEEFNLUN · pith_short_8: B4JI3JVX

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/B4JI3JVXXEEFNLUNSKQJS7ZXGK \
  | 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: 0f128da6b7b90856ae8d92a0997f3732865bbcc4bd05d8814fec5aa66c3f06cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07e5d9780e03d4515b004b76987368fb5f382a363a01818fff3e5065d9ffa1e3",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-09-17T15:21:06Z",
    "title_canon_sha256": "3871771f0498aa4b4f28b7436a8a0d54de2a9fbae30ce3a1687c7bee15c62187"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3686",
    "kind": "arxiv",
    "version": 4
  }
}