OptionalanchorOptionalcheckpointsOptionaldecompressorOptionalesploraesplora API base URLs (proof + chain data). Order = preference.
OptionalfetchOptionallimitsper-request deadline, response-size caps and retry policy for all backends
Optionalmaxcap on decoded (decompressed) body size when auto-decoding tag-9 encodings
OptionalminOptionalminAgreeing outside attesters that must support a non-checkpoint header (default 2). The backend that served the proof is excluded from the vote and counts for nothing; anchoring fails closed below this.
Optionalordord server base URLs (gateway-mode content). Order = preference.
OptionalpowCompact-bits proof-of-work floor for accepted headers. Defaults to the mainnet powLimit (0x1d00ffff); pass the network's own limit (or null to disable) when resolving against non-mainnet chains.
OptionaltrustReplace checkpoint/M-of-N anchoring entirely with a custom header anchor
(e.g. headerSyncTrust over a locally synced chain; see
@ordspv/fetch/headersync). Throw to reject the header. The report's
attests field states whether the anchor compared the hash at the claimed
height; content resolution reads no height out of it, and the sat
genealogy path does.
Optionalverificationdefault verification level for resolve() (default 'L2')
esplora base URLs asked to attest headers by hash-at-height (default
DEFAULT_ANCHOR_SOURCES). The backend that served the proof is removed from this list before the vote, so overlap withesplorais harmless.