Pith Number

pith:VI4WBH5O

pith:2026:VI4WBH5OQN77JF7P7T5FAFLZV3

not attested not anchored not stored refs pending

A Category Theory Account of AI Identity

Andrea Ferrario

arxiv:2607.00220 v1 · 2026-06-30 · math.CT · cs.AI · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VI4WBH5OQN77JF7P7T5FAFLZV3}

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	2026-07-02T00:18:39.744302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa39609fae837ff497effcfa501579aedd1b32403b7888ad6398c3bd346735a3

Aliases

arxiv: 2607.00220 · arxiv_version: 2607.00220v1 · doi: 10.48550/arxiv.2607.00220 · pith_short_12: VI4WBH5OQN77 · pith_short_16: VI4WBH5OQN77JF7P · pith_short_8: VI4WBH5O

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/VI4WBH5OQN77JF7P7T5FAFLZV3 \
  | 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: aa39609fae837ff497effcfa501579aedd1b32403b7888ad6398c3bd346735a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6718eb2e681970959cad0675de45628c0b92b52dd915c0706671746683b5049",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2026-06-30T21:54:36Z",
    "title_canon_sha256": "158f967db0fcac8b69950051f74cb40ca4c2b58fe56258d6ee6f0bd3e88af2d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00220",
    "kind": "arxiv",
    "version": 1
  }
}