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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-16Q-4L-1777346360
Scope
cuquantum_phi_ansatz · 16q · 4096 shots · GPU statevector · NVIDIA GeForce RTX 5090 Laptop GPU — SIMULATION, not hardware
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T03:19:20.185749+00:00 · Tue, 28 Apr 2026 03:19:20 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

a6aa4468019581dbfbc612cca1b7b055d8949700cc70125982f592676c3386b6
→
HSCALE-BENCH-CUQ-PHI-ANSATZ-16Q-4L-1777346360
BLAKE3
cd2fbb98c5ff046dbdb7f52e2859715a2829ea7ec0ca04c0d005ab1da8fb2445
SHA3-512
ef5aed776d5450b5e3fdc0c059ffe1f5a42bc95a4c26b5d8ebf2c817aafc6e5b

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
Gw/IYM/qqKSUSKGHk1pXewRZPQLoj2DzH0ElEUZWn+psOekkaY0sxWNJB7Z6GIveip9AS5g6mH8gNLufwx4hCw==
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. 16 measured qubits, 4096 shots, transpiled depth 4. No IBM job id: this run did not execute on hardware. Measured: layers 4 · distinct 2837 · top 0001101100000010 @ 0.003662. Receipt receipt_cuquantum_16q_4L_1777346360.json, sha256 cd2fbb98c5ff046dbdb7f52e2859715a2829ea7ec0ca04c0d005ab1da8fb2445. 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-16Q-4L-1777346360
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.