✓
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-HERON-PHI-GADT-4Q-d7o1i5ik4prs73dssfug
Scope
phi_gadt · 4q · 4096 shots · real QPU · ibm_fez (Heron 2, 156q device)
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T02:22:05.564764+00:00 · Tue, 28 Apr 2026 02:22:05 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

53c6b8e88d7a4553ddb794491113cc7fa2380bead4d530feedfdc26dc0576383
→
HSCALE-BENCH-HERON-PHI-GADT-4Q-d7o1i5ik4prs73dssfug
BLAKE3
a83d2261929b62d5ab0f1c4793b5753703c256cd552096faa262b26cae7ff50e
SHA3-512
8ace5771fc42bf6767f3bc2b4627b460e0f531e6762445331ee87d11af5a0047

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
nxHFQfHHi5ZYH0+9YdlJRVgS5hPUc5/DrmnZO1buqRaU+xTTne0luSOoibMaT5HeMwOw5BEUolTCkUENqkRVAA==
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)

phi_gadt on real QPU · ibm_fez (Heron 2, 156q device). 4 measured qubits, 4096 shots, transpiled depth 18. IBM job d7o1i5ik4prs73dssfug (DONE) — resolves in the published 1,605-job Heron corpus at molecule-gen.org/evidence. Measured: L1_from_uniform 1.040527 · chi2_uniform 6254.2188 · top 0010 @ 0.232422. Receipt receipt_ibm_fez_phi_gadt_d7o1i5ik4prs73dssfug.json, sha256 a83d2261929b62d5ab0f1c4793b5753703c256cd552096faa262b26cae7ff50e. 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-HERON-PHI-GADT-4Q-d7o1i5ik4prs73dssfug
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.