1. Dormancy timeline. Qualifying spending transactions within the registered address-index cohort, grouped by calendar month. Only inputs at least five calendar years old contribute to dormant BTC totals. Transfers do not establish sales.

2. Documented-path history. Reachable catalogue targets at each year-end and final covered block, recalculated in a fixed union of verified path edges. The sample is selected retrospectively; distances are not full-network historical shortest paths.

3. Claims ledger. Assessment counts describe only the registered corpus. Unresolved claims are not false claims.

4. Crypto controls. Capabilities apply to the identified deployment and recorded block. Unknown does not mean absent; issuer policies and redemption eligibility are separate questions.