grenadeandClaude Opus 5
eb26a7bb3c
A header says who mined a block, not what they were paid: the amount is remaining supply over an emission divisor plus fees, quantized with dust carried forward, so only the `MinerRewarded` event knows it. Reading it means decoding SCALE against the registry of the runtime that produced the block, and this chain's shapes differ from vanilla Substrate because of the post-quantum signatures. So the chain describes itself. `state_getMetadata` at a block hash executes `Metadata_metadata` against the runtime WASM in that block's state; the v14 registry that comes back drives a decoder that knows nothing about mining, rewards or transfers. `INDEXED_EVENTS` is the only place a name appears — adding transfers or anything the chain grows next is one line and a query, not a migration, a struct and a decoder. Metadata is cached per spec_version, because a node that starts pruning would otherwise make history undecodable. Blocks are tried against the tip's runtime first, which costs no extra call; `decode_events` refuses a partial read, so a block from before an upgrade fails loudly rather than decoding into plausible nonsense, and that failure is what asks which runtime actually produced it. `backfill` walks outward from the tip — to the tip first, then toward genesis — because live indexing alone leaves holes an account page would show: a restart, an RPC blip, a gap fill that ran before the metadata was cached. Progress is a cursor rather than `max(height)`, since a block with no indexed event and a block never read are otherwise the same answer. Verified on mainnet: block 13160's preimage derives, through the same Poseidon2 the chain runs, to exactly the `miner` field of its own reward event — so the header author and the payee join with no lookup table. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Jp6a8EDar9ueEhAxzep4V5
34 lines
839 B
TOML
34 lines
839 B
TOML
[package]
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name = "blackbeard-data"
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description = "Chain RPC, telemetry feed and Postgres access for blackbeard.observer."
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version.workspace = true
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edition.workspace = true
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rust-version.workspace = true
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license.workspace = true
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authors.workspace = true
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repository.workspace = true
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[dependencies]
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blackbeard-core.workspace = true
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blackbeard-entities.workspace = true
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bigdecimal.workspace = true
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chrono.workspace = true
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futures-util.workspace = true
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hex.workspace = true
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primitive-types.workspace = true
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reqwest.workspace = true
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serde.workspace = true
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serde_json.workspace = true
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sqlx.workspace = true
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thiserror.workspace = true
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tokio.workspace = true
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tokio-tungstenite.workspace = true
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tracing.workspace = true
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url.workspace = true
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[dev-dependencies]
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tokio = { workspace = true }
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sqlx = { workspace = true }
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chrono = { workspace = true }
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