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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-HERON-PHI-QSVM-4Q-d7o1upi94dqs73evluo0
Scope
phi_qsvm · 4q · 4096 shots · real QPU · ibm_fez (Heron 2, 156q device)
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T02:46:29.491388+00:00 · Tue, 28 Apr 2026 02:46:29 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

9ed9856887fb5fd921fabc60006ef2b08bbba631a57248dc6851a6cd33c28f9b
→
HSCALE-BENCH-HERON-PHI-QSVM-4Q-d7o1upi94dqs73evluo0
BLAKE3
30c6ff796c5ab214c8f10016c89c91d6e9bb750845d556a970079093ab5c9de9
SHA3-512
b3d55ea5f58c91688cd4d94fd040ae2bb699a3ae4439b9e601ec503a77ff6344

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
RPgsnS6DJoODKQWvlLmi7cKH1XoT5fOzFY++OAWPTPR1Pqsf3M8/E8BCIHXhI7fZU73HqZkIjQa3rrWhsEEADQ==
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_qsvm on real QPU · ibm_fez (Heron 2, 156q device). 4 measured qubits, 4096 shots, transpiled depth 29. IBM job d7o1upi94dqs73evluo0 (DONE) — resolves in the published 1,605-job Heron corpus at molecule-gen.org/evidence. Measured: L1_from_uniform 1.56543 · chi2_uniform 23640.3438 · top 0000 @ 0.525146. Receipt receipt_ibm_fez_phi_qsvm_d7o1upi94dqs73evluo0.json, sha256 30c6ff796c5ab214c8f10016c89c91d6e9bb750845d556a970079093ab5c9de9. 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-QSVM-4Q-d7o1upi94dqs73evluo0
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.