Pith Number

pith:WJA65AYM

pith:2018:WJA65AYMTQKSHHTWCUWF2VPJST

not attested not anchored not stored refs pending

Active Learning of Strict Partial Orders: A Case Study on Concept Prerequisite Relations

Bart Pursel, Chen Liang, C. Lee Giles, Han Zhao, Jianbo Ye

arxiv:1801.06481 v1 · 2018-01-19 · cs.LG · cs.AI · 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{WJA65AYMTQKSHHTWCUWF2VPJST}

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	2026-05-18T00:25:29.924057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b241ee830c9c15239e76152c5d55e994d9f4172853b6ea26900471ee742e636c

Aliases

arxiv: 1801.06481 · arxiv_version: 1801.06481v1 · doi: 10.48550/arxiv.1801.06481 · pith_short_12: WJA65AYMTQKS · pith_short_16: WJA65AYMTQKSHHTW · pith_short_8: WJA65AYM

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/WJA65AYMTQKSHHTWCUWF2VPJST \
  | 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: b241ee830c9c15239e76152c5d55e994d9f4172853b6ea26900471ee742e636c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6338f3a5e2e9b2d1cc0411735a226ed03e06f5c16bed2221cb4ab6e65cc6ede",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-01-19T16:26:18Z",
    "title_canon_sha256": "ff00ddd0d1f6f99bf7d625a5db3f5503ac13d4d36c71858e272212d2e20856f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06481",
    "kind": "arxiv",
    "version": 1
  }
}