Pith Number

pith:UH6V5PSA

pith:2026:UH6V5PSANYFWSAREV667PBW3UF

not attested not anchored not stored refs pending

A Technical Taxonomy of LLM Agent Communication Protocols

Alexander Lenz, Alois Knoll, Habtom Kahsay Gidey, Linus Sander

arxiv:2606.19135 v1 · 2026-06-17 · cs.MA · cs.AI · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UH6V5PSANYFWSAREV667PBW3UF}

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	2026-06-19T16:11:57.508244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1fd5ebe406e0b690224afbdf786dba166f39f695592854e5d15757327e9f875

Aliases

arxiv: 2606.19135 · arxiv_version: 2606.19135v1 · doi: 10.48550/arxiv.2606.19135 · pith_short_12: UH6V5PSANYFW · pith_short_16: UH6V5PSANYFWSARE · pith_short_8: UH6V5PSA

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/UH6V5PSANYFWSAREV667PBW3UF \
  | 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: a1fd5ebe406e0b690224afbdf786dba166f39f695592854e5d15757327e9f875

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ed4ae832584eb7ed1be2a206af8376468f369b6e09dc95d15b36a32ec39f277",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.MA",
    "submitted_at": "2026-06-17T14:45:20Z",
    "title_canon_sha256": "3cfc00ae7ecc5f83a75807189e07aa50118c4b22e81d1e71c73399edbedf70cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19135",
    "kind": "arxiv",
    "version": 1
  }
}