Pith Number

pith:7H37MRBV

pith:2026:7H37MRBVWO67NCLVQD5OG4EJAF

not attested not anchored not stored refs pending

Probe, Don't Prompt: A Hidden-State Probe for Metadata Filtering in Multi-Meta-RAG

Mykhailo Poliakov, Nadiya Shvai

arxiv:2607.03929 v1 · 2026-07-04 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7H37MRBVWO67NCLVQD5OG4EJAF}

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	2026-07-07T02:18:15.115210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f7f64435b3bdf6897580fae37089014220fec3e558866a5f586c0210579c05

Aliases

arxiv: 2607.03929 · arxiv_version: 2607.03929v1 · doi: 10.48550/arxiv.2607.03929 · pith_short_12: 7H37MRBVWO67 · pith_short_16: 7H37MRBVWO67NCLV · pith_short_8: 7H37MRBV

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/7H37MRBVWO67NCLVQD5OG4EJAF \
  | 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: f9f7f64435b3bdf6897580fae37089014220fec3e558866a5f586c0210579c05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "080e451126cd46cdc28b6350779ee5876a396478e4beb5b7d06395b932f388ce",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-04T15:47:38Z",
    "title_canon_sha256": "39d0614affcdd18576d602fa19c41dd1009b898738126b2a6ce32e837788e411"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.03929",
    "kind": "arxiv",
    "version": 1
  }
}