Pith Number

pith:KLYQLYCH

pith:2018:KLYQLYCHK3XPJGKWDNF7EOQFCG

not attested not anchored not stored refs pending

Soft Concept Analysis

Robert E. Kent

arxiv:1810.09036 v1 · 2018-10-21 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KLYQLYCHK3XPJGKWDNF7EOQFCG}

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	2026-05-18T00:02:41.170358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52f105e04756eef499561b4bf23a0511af6b1b52b81201328fdfb108b70fa7a9

Aliases

arxiv: 1810.09036 · arxiv_version: 1810.09036v1 · doi: 10.48550/arxiv.1810.09036 · pith_short_12: KLYQLYCHK3XP · pith_short_16: KLYQLYCHK3XPJGKW · pith_short_8: KLYQLYCH

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/KLYQLYCHK3XPJGKWDNF7EOQFCG \
  | 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: 52f105e04756eef499561b4bf23a0511af6b1b52b81201328fdfb108b70fa7a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1de260a8ed0859f8b5002a92ee7f8a65aed933736ade17ddb95e3c2cc92a063",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-10-21T22:30:17Z",
    "title_canon_sha256": "e6fe5dda8def3506629d1c6198947992e625e12a1fb32eda5da12e894fb0dd28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09036",
    "kind": "arxiv",
    "version": 1
  }
}