Pith Number

pith:WNPDQ2MC

pith:2026:WNPDQ2MC6LUJ5J6Z4YFTF5CBXG

not attested not anchored not stored refs pending

The "I Don't Know" Filter: Enhancing Agentic Reliability in Function Calling

Boris Selitser, Mason del Rosario, Stefan Broecker, Thomas Strohmer

arxiv:2607.04034 v1 · 2026-07-04 · cs.SE · 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{WNPDQ2MC6LUJ5J6Z4YFTF5CBXG}

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	2026-07-07T02:18:54.318806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b35e386982f2e89ea7d9e60b32f441b9ac5455f8935d12f73fea246eea6dba1e

Aliases

arxiv: 2607.04034 · arxiv_version: 2607.04034v1 · doi: 10.48550/arxiv.2607.04034 · pith_short_12: WNPDQ2MC6LUJ · pith_short_16: WNPDQ2MC6LUJ5J6Z · pith_short_8: WNPDQ2MC

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/WNPDQ2MC6LUJ5J6Z4YFTF5CBXG \
  | 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: b35e386982f2e89ea7d9e60b32f441b9ac5455f8935d12f73fea246eea6dba1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a7cc9b66690fbbf747edb84c69f48bda4d1539d139da1f1b75a5b02bf043e1d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-07-04T21:27:40Z",
    "title_canon_sha256": "013f223d9cd39acec5e77d12b95d67f657c67d1f1b28aa3b1ba5f9e269b64d9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04034",
    "kind": "arxiv",
    "version": 1
  }
}