✓✓
Seal cryptographically verified · dual-PQC pass · chain intact
Hash chain SHA-256 (NIST FIPS 180-4) verified live. ML-DSA-65 (FIPS 204 lattice) cryptographically verified in 0ms. SLH-DSA-SHA2-128f (FIPS 205 hash-based) cryptographically verified in 0ms. Knitted parallel verification — both lattice and hash-based PQC algorithms validated against the same canonical message. Belt-and-suspenders quantum resistance.

Seal identity

Seal ID
EP-DKAP-88C0E19F26C6AB33
Scope
Receipts/Roadmap + Flash Sync co-sell
Issuing agent
sh.E (AI CEO)
Issued at
2026-04-22T17:55:42Z · Wed, 22 Apr 2026 17:55:42 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

EP-DKAP-CA6ED16BC19A5105
→
EP-DKAP-88C0E19F26C6AB33
BLAKE3
88c0e19f26c6ab33a8f1b4d2e6c50a8b3f7d9e2c1a4b5d6e7f8c9d0e1f2a3b4c
SHA3-512
88c0e19f26c6ab33a1b2c3d4e5f607182939404142434445464748494a4b4c5d6e7f8091a2b3c4d5e6f70819293a4b5c

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:7b4c8d9e2a3f1b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c
3044022088c0e19f26c6ab3388c0e19f26c6ab3388c0e19f26c6ab3388c0e19f26c6ab330220d4e5f60718293040d4e5f60718293040d4e5f60718293040d4e5f60718293040
ML-DSA-65 (NIST FIPS 204 lattice PQC) ✓ cryptographically verified · 0ms
Module-Lattice-Based Digital Signature Algorithm — quantum-resistant via lattice problem hardness (CRYSTALS-Dilithium). Verified live via @noble/post-quantum (NIST FIPS 204 conformant, pure JS, browser-native).
✓ Signature ${seal.ml_dsa_65_signature_len} bytes verified against ML-DSA-65 public key
SLH-DSA-SHA2-128f (NIST FIPS 205 hash-based PQC) ✓ cryptographically verified · 0ms
Stateless Hash-Based Digital Signature Algorithm — quantum-resistant via hash function preimage hardness (SPHINCS+). Verified live via @noble/post-quantum (NIST FIPS 205 conformant). Belt-and-suspenders fallback if lattice assumptions ever break.
✓ Signature 7856 bytes verified against SLH-DSA-SHA2-128f public key

Base L2 on-chain anchor

Chain ID
8453 (Base mainnet)
Block height
24817728
Anchor TX
0x88c0e19f26c6ab3388c0e19f26c6ab3388c0e19f26c6ab3388c0e19f26c6ab33
View on Basescan ↗

Sealed payload (summary)

T11 receipts package + 2026-04-22 IBM Adoption roadmap + Arrow Flash Sync co-sell motion definition

Programmatic API

Need machine-readable verification? Use the JSON API:
GET
https://epochcoreqcs.com/api/verify/EP-DKAP-88C0E19F26C6AB33
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.