Switch to bindex

[romanz]

Requires bitcoin/bitcoin#33657 (to be released in Bitcoin Core 31).

For more information, see slides.

[romanz]

Tested by subscribing to https://mempool.space/address/1BitcoinEaterAddressDontSendf59kuE (with warm OS block cache):

$ ./contrib/history.sh --venv 1BitcoinEaterAddressDontSendf59kuE --only-subscribe
$ curl -s localhost:4224 | egrep 'electrs_rpc_duration_.*scripthash'

	commit	duration [sec]
this PR	2970eb8	0.6
base	b562e8c	3.2

which is quite similar to bindex CLI-based query:

$ ./bindex.sh -a <(echo 1BitcoinEaterAddressDontSendf59kuE) -1
+ export RUST_LOG=info
+ RUST_LOG=info
+ cargo +stable build --release --all --locked
    Finished `release` profile [optimized] target(s) in 0.03s
+ ARGS='--db-path ./db'
+ ulimit -n 8192
+ target/release/bindex-cli --db-path ./db -a /dev/fd/63 -1
[2025-12-28T15:35:25.900146Z INFO  bindex::cache] added 1 new addresses to watch
[2025-12-28T15:35:25.900163Z INFO  bindex::chain] index DB: "./db/bitcoin", node URL: http://localhost:8332
[2025-12-28T15:35:25.943368Z INFO  bindex::db] CF headers: 1082 files, 74.300911 MBs
[2025-12-28T15:35:25.943873Z INFO  bindex::db] CF txpos: 1229 files, 1326.950489 MBs
[2025-12-28T15:35:25.944020Z INFO  bindex::db] CF txid: 227 files, 14415.941564 MBs
[2025-12-28T15:35:25.944425Z INFO  bindex::db] CF script_hash: 634 files, 40907.656340 MBs
[2025-12-28T15:35:26.330326Z INFO  bindex::chain] block=000000000000000000004aa07f2de9399d0cefe7ae3515c0b06404acae21be1f height=929877 headers loaded
[2025-12-28T15:35:26.360323Z INFO  bindex::db] started auto compactions
[2025-12-28T15:35:26.363367Z INFO  bindex::cache] adding 1 history entries, 5333 transactions, 2219 headers to cache=""
[2025-12-28T15:35:26.969674Z INFO  bindex_cli] 1 address history: 5333 entries, balance: 13.39953869 BTC, UTXOs: 5500 [10.700165ms]

[romanz]

Tested on 37jKPSmbEGwgfacCr2nayn1wTaqMAbA94Z, having 23k txs:

$ time ./contrib/history.sh --venv 37jKPSmbEGwgfacCr2nayn1wTaqMAbA94Z --only-subscribe

	commit	duration [sec]
this PR	2970eb8	11.51 → 2.42
base	b562e8c	813

Footnotes

1. first subscription (reading transactions from disk) ↩

2. re-subscription benefits from warm OS cache ↩

3. too many blocks to be cached ↩