Pith Number

pith:7LBPLOPG

pith:2018:7LBPLOPGYEWR5ZHJKPEMBO4E23

not attested not anchored not stored refs pending

Active Metric Learning for Supervised Classification

Dimitri Papageorgiou, Krishnan Kumaran, Martin Tak\'a\v{c}, Minhan Li, Yutong Chang

arxiv:1803.10647 v1 · 2018-03-28 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LBPLOPGYEWR5ZHJKPEMBO4E23}

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	2026-05-18T00:19:54.591365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fac2f5b9e6c12d1ee4e953c8c0bb84d6e7c32f3e45143460c40b9ebb78751e24

Aliases

arxiv: 1803.10647 · arxiv_version: 1803.10647v1 · doi: 10.48550/arxiv.1803.10647 · pith_short_12: 7LBPLOPGYEWR · pith_short_16: 7LBPLOPGYEWR5ZHJ · pith_short_8: 7LBPLOPG

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/7LBPLOPGYEWR5ZHJKPEMBO4E23 \
  | 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: fac2f5b9e6c12d1ee4e953c8c0bb84d6e7c32f3e45143460c40b9ebb78751e24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ff4f0ed77f1155bd64a366d64f08d2fb206b91a10de33c29d2df12c40b4b29",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-03-28T14:36:37Z",
    "title_canon_sha256": "8681795f80759c4f47b5f322c1a84f815e8a4a0b6a0aa6e042d2ae781fa603e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.10647",
    "kind": "arxiv",
    "version": 1
  }
}