Pith Number

pith:SGQBV7SD

pith:2019:SGQBV7SDM24FQB5FHDAGMGZ3RG

not attested not anchored not stored refs pending

Active online learning in the binary perceptron problem

Hai-Jun Zhou

arxiv:1902.08043 v1 · 2019-02-21 · cs.LG · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SGQBV7SDM24FQB5FHDAGMGZ3RG}

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	2026-05-17T23:51:19.055404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91a01afe4366b85807a538c0661b3b89b777524c77f1af62c993d07ff5734212

Aliases

arxiv: 1902.08043 · arxiv_version: 1902.08043v1 · doi: 10.48550/arxiv.1902.08043 · pith_short_12: SGQBV7SDM24F · pith_short_16: SGQBV7SDM24FQB5F · pith_short_8: SGQBV7SD

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/SGQBV7SDM24FQB5FHDAGMGZ3RG \
  | 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: 91a01afe4366b85807a538c0661b3b89b777524c77f1af62c993d07ff5734212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de7b23fbc5bc05bca45fb837f949bc1ed7e2b71fac5f30cc5d9a3e747e2d437e",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-21T13:35:16Z",
    "title_canon_sha256": "00aa88bc35f9fca49a9010084ec859079c84e5a7f8c2c9e9fff0a57f49fd9e96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08043",
    "kind": "arxiv",
    "version": 1
  }
}