Pith Number

pith:PAXIB36S

pith:2026:PAXIB36SNBZ3UFUFDYQE5BYREN

not attested not anchored not stored refs pending

How to evaluate clustering with ground truth?

Pasi Fr\"anti

arxiv:2606.27061 v1 · 2026-06-25 · 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{PAXIB36SNBZ3UFUFDYQE5BYREN}

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	2026-06-26T01:16:08.494720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

782e80efd26873ba16851e204e871123624131c78775c89416e0a0991f0e4049

Aliases

arxiv: 2606.27061 · arxiv_version: 2606.27061v1 · doi: 10.48550/arxiv.2606.27061 · pith_short_12: PAXIB36SNBZ3 · pith_short_16: PAXIB36SNBZ3UFUF · pith_short_8: PAXIB36S

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/PAXIB36SNBZ3UFUFDYQE5BYREN \
  | 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: 782e80efd26873ba16851e204e871123624131c78775c89416e0a0991f0e4049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2998046dff9debadef364fa955ad270ffa90370b6e4909341de7078bb1d1108d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-25T14:07:17Z",
    "title_canon_sha256": "9e0a9b0721a35e8799deb2948bd70e6b529a5bcea3ee975d3146333fee181e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27061",
    "kind": "arxiv",
    "version": 1
  }
}