NOTICES

Horizen Vela
Copyright (c) 2025 The Horizen Foundation

This product is licensed under the Business Source License 1.1.
See the LICENSE file for the full license text.

This product includes software developed by third parties. Below is a list of
those third-party components, their licenses, and links to their source code.
Users may obtain, modify, and relink any of these components under the terms
of their respective licenses.

Build instructions for relinking dependencies are provided in CLAUDE.md and
the go.mod / go.sum files included with this distribution.

================================================================================
WEAK COPYLEFT DEPENDENCIES
================================================================================

The following dependency is licensed under a weak copyleft license. Pursuant
to its license terms, users retain the right to modify and relink this library.
Source code and build configuration (go.mod, go.sum) are provided to enable
this.

go-ethereum
  Version:    v1.16.1
  License:    GNU Lesser General Public License v3.0 (LGPL-3.0) (library code)
              GNU General Public License v3.0 (GPL-3.0) (cmd/ binaries only)
  Source:     https://github.com/ethereum/go-ethereum
  Usage:      Imported as a library for contract bindings, ABI encoding,
              cryptographic utilities, and blockchain interaction.
              Only the LGPL-3.0 applies to this usage.
  Notice:     Copyright 2013-2024 The go-ethereum Authors.
              The full text of the LGPL-3.0 and GPL-3.0 licenses can be
              obtained at:
                https://www.gnu.org/licenses/lgpl-3.0.txt
                https://www.gnu.org/licenses/gpl-3.0.txt

================================================================================
PERMISSIVE DEPENDENCIES - Go (Direct)
================================================================================

wasmtime-go
  Version:    v1.0.0
  License:    Apache-2.0 WITH LLVM-exception
  Source:     https://github.com/bytecodealliance/wasmtime-go
  Notice:     Copyright The Bytecode Alliance contributors.

orderedmap
  Version:    v3.1.0
  License:    MIT
  Source:     https://github.com/elliotchance/orderedmap
  Notice:     Copyright (c) 2020 Elliot Chance.

go-cmp
  Version:    v0.5.9
  License:    BSD-3-Clause
  Source:     https://github.com/google/go-cmp
  Notice:     Copyright (c) 2017 The Go Authors.

nsm (AWS Nitro Secure Module)
  Version:    v0.0.0-20220930140112-cd181bd646b9
  License:    MIT
  Source:     https://github.com/hf/nsm
  Notice:     Copyright (c) 2020 Stojan Dimitrovski.

properties
  Version:    v1.8.10
  License:    BSD-2-Clause
  Source:     https://github.com/magiconair/properties
  Notice:     Copyright (c) 2013-2020 Frank Schroeder.

vsock
  Version:    v1.2.1
  License:    MIT
  Source:     https://github.com/mdlayher/vsock
  Notice:     Copyright (c) 2017-2022 Matt Layher.

testify
  Version:    v1.10.0
  License:    MIT
  Source:     https://github.com/stretchr/testify
  Notice:     Copyright (c) 2012-2020 Mat Ryer, Tyler Bunnell, and contributors.

goleveldb
  Version:    v1.0.1-0.20210819022825-2ae1ddf74ef7
  License:    BSD-2-Clause
  Source:     https://github.com/syndtr/goleveldb
  Notice:     Copyright 2012 Suryandaru Triandana.

zerolog
  Version:    v1.34.0
  License:    MIT
  Source:     https://github.com/rs/zerolog
  Notice:     Copyright (c) 2017 Olivier Poitrey.

golang.org/x/crypto
  Version:    v0.39.0
  License:    BSD-3-Clause
  Source:     https://github.com/golang/crypto
  Notice:     Copyright 2009 The Go Authors.

================================================================================
PERMISSIVE DEPENDENCIES - Go (Indirect, notable)
================================================================================

pebble
  Version:    v1.1.5
  License:    BSD-3-Clause
  Source:     https://github.com/cockroachdb/pebble
  Notice:     Copyright 2011 The LevelDB-Go Authors.

blst
  Version:    v0.3.14
  License:    Apache-2.0
  Source:     https://github.com/supranational/blst
  Notice:     Copyright (c) 2022 Supranational LLC.

gnark-crypto
  Version:    v0.18.0
  License:    Apache-2.0
  Source:     https://github.com/consensys/gnark-crypto
  Notice:     Copyright (c) 2020 ConsenSys Software Inc.

go-eth-kzg
  Version:    v1.3.0
  License:    Apache-2.0
  Source:     https://github.com/crate-crypto/go-eth-kzg
  Notice:     Copyright (c) 2023 Crate Crypto.

c-kzg-4844
  Version:    v2.1.0
  License:    Apache-2.0
  Source:     https://github.com/ethereum/c-kzg-4844
  Notice:     Copyright (c) 2023 The Ethereum Foundation.

DataDog/zstd
  Version:    v1.4.5
  License:    BSD-2-Clause
  Source:     https://github.com/DataDog/zstd
  Notice:     Copyright (c) 2016 Datadog.

gogo/protobuf
  Version:    v1.3.2
  License:    BSD-3-Clause
  Source:     https://github.com/gogo/protobuf
  Notice:     Copyright (c) 2013 The GoGo Authors. Copyright 2010 The Go Authors.

cbor
  Version:    v2.2.0
  License:    MIT
  Source:     https://github.com/fxamacker/cbor
  Notice:     Copyright (c) 2019-2023 Faye Amacker.

golang/protobuf
  Version:    v1.5.4
  License:    BSD-3-Clause
  Source:     https://github.com/golang/protobuf
  Notice:     Copyright 2010 The Go Authors.

google.golang.org/protobuf
  Version:    v1.34.2
  License:    BSD-3-Clause
  Source:     https://github.com/protocolbuffers/protobuf-go
  Notice:     Copyright 2018 The Go Authors.

golang/snappy
  Version:    v0.0.5-0.20220116011046-fa5810519dcb
  License:    BSD-3-Clause
  Source:     https://github.com/golang/snappy
  Notice:     Copyright 2011 The Snappy-Go Authors.

================================================================================
PERMISSIVE DEPENDENCIES - npm (contracts/)
================================================================================

@openzeppelin/contracts
  Version:    ^5.3.0
  License:    MIT
  Source:     https://github.com/OpenZeppelin/openzeppelin-contracts
  Notice:     Copyright (c) 2016-2024 zOS Global Limited and contributors.

dotenv
  Version:    ^17.0.0
  License:    BSD-2-Clause
  Source:     https://github.com/motdotla/dotenv
  Notice:     Copyright (c) 2015 Scott Motte.

hardhat (dev dependency)
  Version:    ^2.25.0
  License:    MIT
  Source:     https://github.com/NomicFoundation/hardhat
  Notice:     Copyright (c) 2019 Nomic Labs LLC.

@nomicfoundation/hardhat-toolbox (dev dependency)
  Version:    ^6.0.0
  License:    MIT
  Source:     https://github.com/NomicFoundation/hardhat
  Notice:     Copyright (c) 2022 Nomic Foundation.

================================================================================
PERMISSIVE DEPENDENCIES - npm (subgraphs/hcce/)
================================================================================

@graphprotocol/graph-cli
  Version:    0.98.1
  License:    Apache-2.0 OR MIT (dual license)
  Source:     https://github.com/graphprotocol/graph-tooling
  Notice:     Copyright (c) The Graph Foundation.

@graphprotocol/graph-ts
  Version:    0.37.0
  License:    Apache-2.0 OR MIT (dual license)
  Source:     https://github.com/graphprotocol/graph-tooling
  Notice:     Copyright (c) The Graph Foundation.

matchstick-as (dev dependency)
  Version:    0.6.0
  License:    MIT
  Source:     https://github.com/LimeChain/matchstick-as
  Notice:     Copyright (c) LimeChain.

================================================================================
RELINKING INSTRUCTIONS
================================================================================

This software statically links go-ethereum, which is licensed under LGPL-3.0.
To rebuild this software with a modified version of go-ethereum:

1. Clone this repository.
2. Edit go.mod to point to your modified go-ethereum (using a replace directive
   or by changing the module version).
3. Run: go mod tidy
4. Build the project: go build ./cmd/manager && go build ./cmd/executor

Full build instructions are available in CLAUDE.md.