Pith Number

pith:NTM3OW7D

pith:2026:NTM3OW7D5BJJ2UVAFDNJZYCFZI

not attested not anchored not stored refs pending

Unicode TAG-Block Concealment of Tool-Metadata Payloads in the Model Context Protocol: An Approval-View Fidelity Gap Across Three Independent Server Implementations

Mohammadreza Rashidi

arxiv:2607.05744 v1 · 2026-07-07 · cs.CR · cs.AI · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTM3OW7D5BJJ2UVAFDNJZYCFZI}

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	2026-07-08T01:18:43.655490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cd9b75be3e8529d52a028da9ce045ca1c51a773ff091cd4059b008879fd51d1

Aliases

arxiv: 2607.05744 · arxiv_version: 2607.05744v1 · doi: 10.48550/arxiv.2607.05744 · pith_short_12: NTM3OW7D5BJJ · pith_short_16: NTM3OW7D5BJJ2UVA · pith_short_8: NTM3OW7D

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/NTM3OW7D5BJJ2UVAFDNJZYCFZI \
  | 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: 6cd9b75be3e8529d52a028da9ce045ca1c51a773ff091cd4059b008879fd51d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c933b5072f36793b48be7a989cdebc34080367ad9ff51c57c81bce87bf8370f",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-07T02:01:44Z",
    "title_canon_sha256": "7d259163652decb4bfd3edebb710254e5541bef8a3f1c1e1d8faf3f2058bd2ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05744",
    "kind": "arxiv",
    "version": 1
  }
}