diff --git a/README.md b/README.md
index 80b29a9..ba3813f 100644
--- a/README.md
+++ b/README.md
@@ -91,18 +91,59 @@ Then:
 ```shell 
 export DEPLOY_PRIVATE_KEY=
 export JSON_RPC_POLYGON=
-forge create --rpc-url $JSON_RPC_POLYGON --private-key $DEPLOY_PRIVATE_KEY contracts/TermsOfService.sol:TermsOfService
+export POLYGONSCAN_API_KEY=
+forge create \
+  --rpc-url $JSON_RPC_POLYGON \
+  --private-key $DEPLOY_PRIVATE_KEY \
+  --etherscan-api-key $POLYGONSCAN_API_KEY \
+  --verify \
+  src/TermsOfService.sol:TermsOfService
+```
+
+#### PolygonScan verification failures with Forge 
+
+Save the address. Because Polygonscan is a hard mistress and tends to crash, verify manually:
+
+```shell
+export CONTRACT_ADDRESS=0xDCD7C644a6AA72eb2f86781175b18ADc30Aa4f4d.
+scripts/verify-deployment.sh
 ```
 
 ### Initialising
 
-The following placeholder terms of service message is used.
+[The INITIAL_ACCEPTANCE_MESSAGE placeholder terms of service message](./terms_of_service/acceptance_message.py) is used.
+
 
+Get the hash of the message:
+
+```shell
+ipython 
 ```
 
+```python
+from terms_of_service.acceptance_message import INITIAL_ACCEPTANCE_MESSAGE, get_signing_hash
+print(get_signing_hash(INITIAL_ACCEPTANCE_MESSAGE).hex())
+```
+
+```shell
+export ACCEPTANCE_MESSAGE_HASH=808318f1c18ddfb861cd9755fe5005e3028f816039dc42a1b52e4f5031b645a4
+export TERMS_OF_SERVICE_VERSION=1
+```
+
+Then set the initial version:
+
+```shell
+cast send \
+  --private-key $DEPLOY_PRIVATE_KEY \
+  --rpc-url $JSON_RPC_POLYGON \
+  "updateTermsOfService(uint16 version, bytes32 acceptanceMessageHash)" \ 
+  $TERMS_OF_SERVICE_VERSION \
+  $ACCEPTANCE_MESSAGE_HASH
 ```
 
+## Deployment
 
+A test deployment can be found on Polygon []().
 
 ## More information
 
diff --git a/abi/TermsOfService.json b/abi/TermsOfService.json
new file mode 100644
index 0000000..d68f0c5
--- /dev/null
+++ b/abi/TermsOfService.json
@@ -0,0 +1 @@
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Can only be called by the current 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the current user proceed to the next step, or they they need to sign the latest terms of service."},"signTermsOfServiceBehalf(address,bytes32,bytes,bytes)":{"notice":"Sign terms of service - Externally Owned Account sign - EIP-1271 sign - EIP-191 formatted message The user can sign multiple times. See - ECDSA tryRecover https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/ECDSA.sol - Gnosis Safe signing example: https://github.com/safe-global/safe-eth-py/blob/master/gnosis/safe/tests/test_safe_signature.py#L195 - OpenZeppelin SignatureChecker implementation: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/SignatureChecker.sol"}},"notice":"Terms of service acceptance tracker Manage signatures of users of different versions of terms of service.","version":1}}
\ No newline at end of file
diff --git a/remappings.txt b/remappings.txt
new file mode 100644
index 0000000..43c0428
--- /dev/null
+++ b/remappings.txt
@@ -0,0 +1 @@
+@openzeppelin/=lib/openzeppelin-contracts/contracts
\ No newline at end of file
diff --git a/scripts/verify-deployment.sh b/scripts/verify-deployment.sh
new file mode 100755
index 0000000..9d9b026
--- /dev/null
+++ b/scripts/verify-deployment.sh
@@ -0,0 +1,15 @@
+  #!/bin/bash
+
+set -e
+set -x
+set -u
+
+forge verify-contract \
+    --etherscan-api-key $POLYGONSCAN_API_KEY \
+    --flatten \
+    --force \
+    --chain polygon \
+    --constructor-args $(cast abi-encode "constructor()") \
+     $CONTRACT_ADDRESS \
+     src/VaultUSDCPaymentForwarder.sol:VaultUSDCPaymentForwarder
+
diff --git a/terms_of_service/acceptance_message.py b/terms_of_service/acceptance_message.py
index 888da19..999da41 100644
--- a/terms_of_service/acceptance_message.py
+++ b/terms_of_service/acceptance_message.py
@@ -8,7 +8,7 @@
 
 from eth_account.messages import encode_defunct, _hash_eip191_message
 
-DEFAULT_ACCEPTANCE_MESSAGE = """
+DEFAULT_ACCEPTANCE_MESSAGE_TEMPLATE = """
 I read and agree on terms of service (version {version}) to use
 smart contract software deployed on a blockchain.
 
@@ -16,24 +16,36 @@
 The unique identifier hash for this terms of service text was {hash}.
 """.strip()
 
+INITIAL_ACCEPTANCE_MESSAGE = """
+I read and agree on terms of service (version 1) to use
+smart contract software deployed on a blockchain.
+
+The terms of service text was published 10.1.2024 at https://example.com.
+The unique identifier hash for this terms of service text was 0x0000000000000000000000000000000000000000.
+""".strip()
+
 
 def generate_acceptance_message(
         version: int,
         date: datetime.datetime,
         link: str,
         hash: bytes,
-        template=DEFAULT_ACCEPTANCE_MESSAGE):
+        template=DEFAULT_ACCEPTANCE_MESSAGE_TEMPLATE):
     assert type(version) == int
     assert type(link) == str
     assert type(hash) == bytes
     assert len(hash) == 32, "Must be 256-bit sha of terms of service file"
     assert isinstance(date, datetime.datetime)
     human_date = date.strftime("%Y-%m-%d")
-    return DEFAULT_ACCEPTANCE_MESSAGE.format(version=version, link=link, hash=hash.hex(), human_date=human_date)
+    return template.format(version=version, link=link, hash=hash.hex(), human_date=human_date)
 
 
 def get_signing_hash(message: str) -> bytes:
     assert type(message) == str
     signable_message = encode_defunct(text=message)
     hash = _hash_eip191_message(signable_message)
-    return hash
\ No newline at end of file
+    return hash
+
+
+def get_initial_hash() -> bytes:
+    """"""
\ No newline at end of file