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Labcoat

Protocol reference

Cellpacks

Section titled “Cellpacks”

An Alkanes call is encoded as [block, tx, opcode, ...args], where each value is a u128. Short string arguments are packed little-endian into one u128.

Deployment envelopes

Section titled “Deployment envelopes”

Deployment targets cellpack [1, 0], meaning “create a new alkane.” The raw Wasm module is compressed and placed in a taproot witness envelope across a commit/reveal transaction pair.

Contract IDs

Section titled “Contract IDs”

The create trace returns the contract’s block:tx ID. Labcoat records it under the chosen contract name in labcoat.lock, so later calls can use either form.

Protostone outputs

Section titled “Protostone outputs”

Trace events attach to virtual outputs. For protostone index i, the output is:

transaction_output_count + 1 + i

labcoat trace performs this mapping automatically.

Index synchronization

Section titled “Index synchronization”

State-changing operations wait until the Alkanes index height reaches the chain height before reading new state. INDEXER_LAG means that bounded wait expired; inspect labcoat status and labcoat logs --service metashrew.