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Add requirement to sort tokens #2

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Merged
MichaelMure merged 5 commits into from
Dec 3, 2025
Merged

Add requirement to sort tokens #2

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44d028c
Add recommendation to sort tokens
alanshaw Oct 3, 2025
f5c7587
fix: more succinct
alanshaw Oct 3, 2025
84e466b
docs: sign CLA
alanshaw Dec 3, 2025
f380af1
fix: dead links
alanshaw Dec 3, 2025
d9858a2
Bytewise ordering is a requirement
alanshaw Dec 3, 2025
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2 changes: 1 addition & 1 deletion Readme.md
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Expand Up @@ -27,7 +27,7 @@ The UCAN spec itself is transport agnostic. This specification describes how to

UCAN tokens, regardless of their kind ([Delegation], [Invocation], [Revocation], [Promise]) MUST be first signed and serialized into DAG-CBOR bytes according to their respective specification. As the token's CID is not part of the serialized container, any CID returned by this operation is to be ignored.

All the tokens' bytes MUST be assembled in a [CBOR] array. The ordering of tokens in the array MUST NOT matter. This array SHOULD NOT have duplicate entries.
All the tokens' bytes MUST be assembled in a [CBOR] array. The ordering of tokens in the array MUST NOT matter. This array SHOULD NOT have duplicate entries and SHOULD be ordered bytewise to ensure a deterministic encoding.

That array is then inserted as the value under the `ctn-v1` string key, in a CBOR map. There MUST NOT be other keys.

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