Pearl Channels

Open a channel

Lock PRL into a 2-of-2 Taproot output shared with one counterparty. Pearl has no smart contracts, so the channel is pure script: both of you must sign to move the funds — on-chain via a cooperative close, or off-chain by exchanging signed commitment transactions that either of you can broadcast. Your money, your keys, no custodian.

Your key 64-hex x-only pubkey or 12/24-word mnemonic (BIP-86). Needed to sign — kept in memory only, never stored. Peer x-only pubkey 64 hex characters. Their half of the 2-of-2. Your payout address prl1… address where your balance lands on close. Peer payout address prl1… address where their balance lands. Immediate on every commitment. Your capacity (PRL) Peer capacity (PRL) CSV delay (blocks) How long your unilateral-close claim waits. 144 ≈ 8h. 1–65535. Fee rate (grains/vB)

Fund the channel

Send your capacity to the channel address in one transaction. The fee comes from your wallet, not the channel — commitment balances always sum to the full capacity.

Blockbook base URL GET-only reads. Stored locally. Fee rate (grains/vB)

Signing key

Channel state

Each payment is a new state: both balances, a fresh pair of commitment transactions, and revoked old secrets. Propose a payment, sign your copies, exchange with your peer (export / import below), then revoke the old state. The latest fully-signed state is the truth.

Propose a payment

Direction Amount (PRL) Fee rate (grains/vB) Peer's revocation hash160 40 hex chars, sent by your peer for this state. Leave blank only while testing — a placeholder is generated and clearly labeled, and replaced when their bundle arrives.

History

Close the channel

Two ways out. Cooperative needs both signatures but settles immediately. Unilateral needs only you: broadcast your latest fully-signed commitment, wait out the CSV delay, then claim your output. Never broadcast an old state — your peer holds the revocation secret.

Cooperative close

Immediate outputs to both payout addresses. Fee split equally.

Unilateral close

Broadcast your latest commitment, then claim after the CSV delay.

Optional builder tip — add 1% of the claimed amount as its own output to the builder (prl1p62v09vuzyd8kdz9l23jaf3kph4wwx6jqcmhkkhg8lhr2qlxky8psu3zw9d). You receive your to_local balance minus the claim fee and the tip. Off by default; commitment transactions and cooperative closes never carry a tip.

Penalty claim — revoked state

If your peer broadcasts a revoked state, sweep their entire to_local output at once via the penalty leaf — no CSV wait. You need the revocation secret they revealed for that state (recorded in the State step).

Peer's revocation secret (revoked state) Optional builder tip — add 1% of the penalized amount as its own output to the builder (prl1p62v09vuzyd8kdz9l23jaf3kph4wwx6jqcmhkkhg8lhr2qlxky8psu3zw9d). You receive the penalized to_local balance minus the claim fee and the tip. Off by default; commitment transactions and cooperative closes never carry a tip.

Track the channel

GET-only Blockbook reads. Nothing here can move funds.

Blockbook base URL

This page is not a watchtower: it only checks when you ask. If you go offline with an open channel, your peer could broadcast a revoked state. For always-on monitoring, use Pearl Watch on the funding and commitment txids.

Verify

Standalone verifier. Paste a channel descriptor and any signed channel transaction — every signature is re-checked, outputs are matched against the expected state, and the verdict is PROVEN or NOT PROVEN with reasons. No keys needed.

Funding txid Funding vout State version Your balance (grains) Peer balance (grains) Your payout address Fee rate (grains/vB) Your revocation hash160 40 hex — needed to match commitment txs. From the state bundle. Peer revocation hash160 40 hex — needed to match commitment txs. From the state bundle.

Channel descriptor JSON Signed transaction hex

Honest limits

No routing, no multi-hop, no invoices — one channel, one peer, fixed capacity set at open.
State exchange is manual: export a bundle, send it to your peer however you like, import theirs.
This page is not a watchtower. If you are offline, your peer can broadcast a revoked state — use Pearl Watch for monitoring.
The penalty model is opt-in training wheels: revocation secrets are exchanged by hand, and the claim delay is in blocks, not wall-clock time.
Commitment fees are fixed when a state is signed; if chain fees spike, a unilateral close can get expensive.
Broadcasting a revoked state lets your peer take your entire to_local output. Don't.
The optional builder tip on a unilateral or penalty claim is off by default, is never automatic, and is added before you sign — commitment transactions and cooperative closes never carry one.

Open a channel

Channel open

Restore

Fund the channel

Funding transaction

Already funded?

Channel state

Propose a payment

Proposed state

Exchange with your peer

Peer's signatures

Fully-signed commitments

Revocation