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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-20Q-16L-1777346364
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
2026-04-28T03:19:24.311938+00:00 · Tue, 28 Apr 2026 03:19:24 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

dddee17978fa8c47fb98717624c2d6e4e56a91c47e950bc02e27e5e0eabc7511
→
HSCALE-BENCH-CUQ-PHI-ANSATZ-20Q-16L-1777346364
BLAKE3
63d02aa5e49f1b8bf9e56d827f25198b66fa78d529c3e07f74be4dd972c75df9
SHA3-512
291b8d0626fb764bc04e30ab9da695042745173d22cd9ffff3ea46c487281b61

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
caiWOQyJcmGexUj10gv/hnFrzWJn1cgxLaHmEVVUqIck1zXCy/xIPUIfgeEUaxWyyIZnPnaSMCZjnesAYrtFBA==
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 16. No IBM job id: this run did not execute on hardware. Measured: layers 16 · distinct 4074 · top 10010010000100110000 @ 0.000488. Receipt receipt_cuquantum_20q_16L_1777346364.json, sha256 63d02aa5e49f1b8bf9e56d827f25198b66fa78d529c3e07f74be4dd972c75df9. 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-16L-1777346364
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.