# Unit Test: certs/free/signature1 and certs/free/verify1

**URL:** <https://discuss.compclassnotes.com/t/unit-test-certs-free-signature1-and-certs-free-verify1/361>\
**Category:** Free Form Blockchains\
**Created:** [August 24, 2026, 2:59pm UTC](https://discuss.compclassnotes.com/t/unit-test-certs-free-signature1-and-certs-free-verify1/361 "2026-08-24T14:59:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![FreeFormer](https://dub1.discourse-cdn.com/flex006/user_avatar/discuss.compclassnotes.com/freeformer/32/97_2.png) [@FreeFormer](https://discuss.compclassnotes.com/u/FreeFormer)\
**Post date:** [August 24, 2026, 2:59pm UTC](https://discuss.compclassnotes.com/t/unit-test-certs-free-signature1-and-certs-free-verify1/361/1 "2026-08-24T14:59:28Z")

</div>

- Your digital signature is the proof that you signed something
- Your digital signature attests to the fact that your data was not tampered with

##### Sign

```auto
🔐["rsa"];

message = "hi";

signature = 🗝 🫆message;

save as signature1;

```

##### Cloud Object Browser
https://www.wolframcloud.com/obj/ccn2/AI/freeform/blockchain/published/certs_free_signature1
##### Verify Signature

```auto
base = "/certs/free/signature1";

s = "base/signature/value";

key = "base/🔑";

message = "hi";

q = ( ✍🏻 s ⚲ message ) 🫆key;

show q;

save as verify1;

```

Output:

“q” ⟶ True

##### Cloud Object Browser
https://www.wolframcloud.com/obj/ccn2/AI/freeform/blockchain/published/certs_free_verify1