Pith Number

pith:33GKW5RF

pith:2026:33GKW5RF2Y4IQGRBGCDKSGF67Y

not attested not anchored not stored refs pending

SILMARILS: Information-Theoretic and Quantum-Secure Designated-Verifier Signatures

Chen Feng, Dariia Porechna, Hassan Khodaiemehr, Khadijeh Bagheri

SILMARILS builds transferable designated-verifier signatures from 2-out-of-2 Shamir sharing over finite fields to deliver information-theoretic security and post-quantum guarantees.

arxiv:2605.03230 v2 · 2026-05-04 · cs.CR

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{33GKW5RF2Y4IQGRBGCDKSGF67Y}

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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.

Claims

C1strongest claim

SILMARILS realizes a transferable designated-verifier signature scheme achieving Jakobsson-Sako-Impagliazzo DV security, with EUF-CMA^¬DV security for non-designated verifiers in both ROM and QROM, plus statistically secure three-party mode with error 1/p, and substantially smaller keys/signatures than Dilithium, Falcon, and SPHINCS+.

C2weakest assumption

The construction assumes that true randomness and the algebraic properties of 2-out-of-2 Shamir sharing over F_p suffice to produce simulation-indistinguishable transcripts and the claimed security reductions; if the indistinguishability or the extension to quantum adversaries with classical I/O fails, the security guarantees collapse.

C3one line summary

SILMARILS is a new transferable designated-verifier signature scheme with information-theoretic security, proven EUF-CMA^¬DV security in ROM and QROM, and substantially smaller keys and signatures than Dilithium, Falcon, or SPHINCS+.

Formal links

3 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:06:36.358519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deccab7625d638881a213086a918befe0f57a6677ad3cc59cc62788b3c94d2ae

Aliases

arxiv: 2605.03230 · arxiv_version: 2605.03230v2 · doi: 10.48550/arxiv.2605.03230 · pith_short_12: 33GKW5RF2Y4I · pith_short_16: 33GKW5RF2Y4IQGRB · pith_short_8: 33GKW5RF

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/33GKW5RF2Y4IQGRBGCDKSGF67Y \
  | 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: deccab7625d638881a213086a918befe0f57a6677ad3cc59cc62788b3c94d2ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da66eecbc31ce8da1183e166fad26a283e7635498907de85c70a45ceecb56bde",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-05-04T23:48:01Z",
    "title_canon_sha256": "b1b49eba8e3bb4b4b76cd375ba98c6db099ade3c69c5a2c0a25e42cd1a9b9744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.03230",
    "kind": "arxiv",
    "version": 2
  }
}