Sigil

Sigil is a logical verification rule. It defines what we observe onchain and under what conditions it is satisfied.

Components

1. Asset Selector

Defines what is observed onchain. Supported types:

• Inscription
• Rune
• Address balance
• NFT collection

2. Asset Type

Explicit declaration of the asset type:

• INSCRIPTION
• RUNE
• BTKN
• NFT
• TOKEN

3. Quantity / Threshold

Minimum quantitative condition, e.g.:

• min = 1
• min = 100
• balance >= 0.5 BTC

4. Scope

Observation scope:

• Current state
• Snapshot at a specific block
• Time-based snapshot

Example: block_height = 820000

5. Evaluation Mode

How often and how the sigil is evaluated:

• continuous (e.g. for Access — always continuous)
• on event
• on demand

Examples

Example 1 — Ordinals holder

• Asset type: ORDINAL
• Collection: ABC
• Quantity threshold: min 1
• Scope: current state

Result: wallet has ≥ 1 ordinal from collection ABC → true

Example 2 — Token

• Asset type: TOKEN
• Contract: TOKEN_X
• Threshold: >= 100

Example 3 — Snapshot

• Asset type: NFT
• Collection: XYZ
• Threshold: >= 1
• Snapshot: block 930000