Blob

The signed envelope every Hypermedia blob extends, with a type tag, the signer's public key, an Ed25519 signature over the canonical CBOR with the signature zeroed, and a millisecond timestamp.

Seed Hypermedia

24 September 2026, 11:28

Seed Hypermedia

24 September 2026, 11:28

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Attributes0

name: Blob
summary: The signed envelope every Hypermedia blob extends, with a type tag, the signer's public key, an Ed25519 signature over the canonical CBOR with the signature zeroed, and a millisecond timestamp.

Schema definitionThe schema this document defines, for other documents to use.

Extends

type Blob type tag the network dispatches on to pick a decoder and rules, such as `Change` or `Ref`.
signer Public key of the account or device that signed the blob.
sig Signature over the canonical DAG-CBOR of the blob with `sig` set to 64 zero bytes.
ts When the signer says the blob was made, in Unix milliseconds; not checked against real time.