Pith Number

pith:7TOCLF2C

pith:2015:7TOCLF2CYLBTDCQYRQW4H2QKUE

not attested not anchored not stored refs pending

Learning with a Drifting Target Concept

Liu Yang, Steve Hanneke, Varun Kanade

arxiv:1505.05215 v1 · 2015-05-20 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7TOCLF2CYLBTDCQYRQW4H2QKUE}

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	2026-05-18T02:03:59.068772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcdc259742c2c3318a188c2dc3ea0aa1057531e32bde1f1fcc1557f949416e6a

Aliases

arxiv: 1505.05215 · arxiv_version: 1505.05215v1 · doi: 10.48550/arxiv.1505.05215 · pith_short_12: 7TOCLF2CYLBT · pith_short_16: 7TOCLF2CYLBTDCQY · pith_short_8: 7TOCLF2C

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/7TOCLF2CYLBTDCQYRQW4H2QKUE \
  | 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: fcdc259742c2c3318a188c2dc3ea0aa1057531e32bde1f1fcc1557f949416e6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1554b66c1935ad08cbc4839030f8c59e0cd5dd88c2813ba5dce11ee974fbbee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-20T00:41:23Z",
    "title_canon_sha256": "bb8e32446ca463da33ddb125ec4a37511e53e24f3063bf94e971c505945000cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05215",
    "kind": "arxiv",
    "version": 1
  }
}