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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-MPS-PHI-GADT-20Q-CHI256-1777344860
Scope
mps_phi_gadt · 20q · 1024 shots · matrix-product-state · matrix_product_state — APPROXIMATE simulation, not hardware
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T02:54:20.521950+00:00 · Tue, 28 Apr 2026 02:54:20 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

5ec559a0813f5b63068ca1305cc87709c013668d8b417587eae5b8b7e127f77a
→
HSCALE-BENCH-MPS-PHI-GADT-20Q-CHI256-1777344860
BLAKE3
745591e293d172cfba0ecd5237ecacc8a4d57a7d57fcb4534ee0177fba97fef8
SHA3-512
d5eae0f40da43ef79ff7ae66909c69bc458b9b94122098a92f17c94df95912e1

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
+s53/VOFJkkEpiPqyFhYhfnVeVRMHbG5hATUepRo82+O59sNnGC+Jj3csUanj3ztyQoQL0eah+QVapIm0P/0AA==
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)

mps_phi_gadt on matrix-product-state · matrix_product_state — APPROXIMATE simulation, not hardware. 20 measured qubits, 1024 shots, transpiled depth 23. No IBM job id: this run did not execute on hardware. Measured: chi 256 · distinct 1022 · top 0.001953 · top10 mass 0.011719. Receipt receipt_mps_20q_chi256_1777344860.json, sha256 745591e293d172cfba0ecd5237ecacc8a4d57a7d57fcb4534ee0177fba97fef8. 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-MPS-PHI-GADT-20Q-CHI256-1777344860
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.