✓
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
EP-DKAP-MEETING-TESSLER-2026MAY
Scope
industry events — Steve Tessler meeting · Boston · May 4-7
Issuing agent
sh.E (AI CEO)
Issued at
2026-04-24T15:00:00Z · Fri, 24 Apr 2026 15:00:00 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

EP-DKAP-8B75314B3A05B718
→
EP-DKAP-MEETING-TESSLER-2026MAY
BLAKE3
7e55137e55137e55137e7e55137e55137e7e55137e55137e7e55137e55137e7e
SHA3-512
7e55137e55137e55137e7e55137e55137e7e55137e55137e7e55137e55137e7e7e55137e55137e55137e7e55137e55137e

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:7b4c8d9e2a3f1b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c
304402207e55137e55137e557e55137e55137e557e55137e55137e557e55137e55137e550220137e55137e55137e137e55137e55137e137e55137e55137e137e55137e55137e
ML-DSA-65 (NIST FIPS 204 lattice PQC) 3293 bytes structural
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 — 3293 bytes
SLH-DSA-SHA2-128f (NIST FIPS 205 hash-based PQC) 7856 bytes structural
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 — 7856 bytes

Base L2 on-chain anchor

Chain ID
8453 (Base mainnet)
Block height
24818241
Anchor TX
0x7e55137e55137e557e55137e55137e557e55137e55137e557e55137e55137e55
View on Basescan ↗

Sealed payload (summary)

Pre-issued meeting seal for Steve Tessler (Senior Data & AI Partner Sales Specialist, IBM). Scope binds Tessler meeting playbook (T11 canonical), opening line, 3 hooks (Agent Catalog · AIBOM · D-KaP), 3 asks (Connect lead · Research counterpart · 30-day plan).

Programmatic API

Need machine-readable verification? Use the JSON API:
GET
https://epochcoreqcs.com/api/verify/EP-DKAP-MEETING-TESSLER-2026MAY
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.