✓
Seal structurally valid · PQC signatures missing or unverified
Hash chain verified, but PQC signature verification did not pass. This may be expected for benchmark archive seals (PQC pre-signing limited to interactive seals in Phase 3).

Seal identity

Seal ID
HSCALE-BENCH-CUQ-PHI-ANSATZ-20Q-8L-1777346363
Scope
cuquantum_phi_ansatz · 20q · 4096 shots · GPU statevector · NVIDIA GeForce RTX 5090 Laptop GPU — SIMULATION, not hardware
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T03:19:23.070166+00:00 · Tue, 28 Apr 2026 03:19:23 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

5a6fd88007a87307e05565ff8805f78ee2604a98abf82de4107db20e4c8e4fa6
→
HSCALE-BENCH-CUQ-PHI-ANSATZ-20Q-8L-1777346363
BLAKE3
40a3ddbe020283413aac866dc8552dce136aadc874559cf8c90cf688c45201c8
SHA3-512
379f03661ccaada31f15857425f409c09f8afa197e062f38cfd0864be2bb95b9

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
RKxgcmAfELxK1XFbsZngMlpwbehX0jtw5ZlRTRtEIKcHbwNMbGF9EklpvCr0l4uNfVWV3RdtI3dYZ2p1UgL8AA==
ML-DSA-65 (NIST FIPS 204 lattice PQC) no signature (archive)
Module-Lattice-Based Digital Signature Algorithm — quantum-resistant via lattice problem hardness (CRYSTALS-Dilithium). Verification deferred for archival benchmark seals.
ML-DSA-65 signature payload — 4627 bytes
SLH-DSA-SHA2-128f (NIST FIPS 205 hash-based PQC) no signature (archive)
Stateless Hash-Based Digital Signature Algorithm — quantum-resistant via hash function preimage hardness (SPHINCS+). Verification deferred for archival benchmark seals.
SLH-DSA-SHA2-128f signature payload — 0 bytes

Base L2 on-chain anchor

Chain ID
0 (Base mainnet)
Block height
0
Anchor TX
View on Basescan ↗

Sealed payload (summary)

cuquantum_phi_ansatz on GPU statevector · NVIDIA GeForce RTX 5090 Laptop GPU — SIMULATION, not hardware. 20 measured qubits, 4096 shots, transpiled depth 8. No IBM job id: this run did not execute on hardware. Measured: layers 8 · distinct 4019 · top 01100101011100111001 @ 0.000732. Receipt receipt_cuquantum_20q_8L_1777346363.json, sha256 40a3ddbe020283413aac866dc8552dce136aadc874559cf8c90cf688c45201c8. Ed25519 signature is over the 32-byte hex-decoded seal_hash and verifies against the published key; ML-DSA-87 present. Not anchored to an L2 chain — this is a signed archive receipt, not an on-chain record.

Programmatic API

Need machine-readable verification? Use the JSON API:
GET
https://epochcoreqcs.com/api/verify/HSCALE-BENCH-CUQ-PHI-ANSATZ-20Q-8L-1777346363
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.