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docs: correct Sponsored FPC address in getting started on testnet guide - #24471

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critesjosh wants to merge 2 commits into
AztecProtocol:nextfrom
critesjosh:docs/testnet-sponsored-fpc-address
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critesjosh wants to merge 2 commits into
AztecProtocol:nextfrom
critesjosh:docs/testnet-sponsored-fpc-address

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Problem

The current getting_started_on_testnet guide sets SPONSORED_FPC_ADDRESS=0x261366b3c0a9b4c30864629556cf282be409e6822b1f3a065fcb7e34f36d7880, but that contract is not deployed on the live testnet (node https://v5.testnet.rpc.aztec-labs.com, version 5.0.0-rc.2). Following the guide as written fails at register-contract / create-account.

Fix

Point SPONSORED_FPC_ADDRESS at the deployed canonical Sponsored FPC 0x1969946536f0c09269e2c75e414eef4e21a76e763c5514125208db33d7d944d7.

Verification

  • node_getContract against https://v5.testnet.rpc.aztec-labs.com: 0x1969…944d7 returns a deployed contract instance; 0x2613…7880 returns null.
  • Matches the networks overview page and the version-v5.0.0-rc.2 docs snapshot, which already uses 0x1969…944d7.

Scope

Only the current docs-developers source had drifted; the version-v5.0.0-rc.2 snapshot (what testnet docs serve) is already correct. One-line change. NODE_URL was already correct.

Draft for review.

@critesjosh critesjosh closed this Jul 2, 2026
danielntmd pushed a commit to danielntmd/aztec-packages that referenced this pull request Jul 7, 2026
danielntmd pushed a commit to danielntmd/aztec-packages that referenced this pull request Jul 7, 2026
…duces AztecProtocol#24471) (AztecProtocol#24472)

## What

Reproduces the changes in AztecProtocol#24471 (originally opened from a fork) so it
runs under the org's CI/merge tooling. Corrects the testnet **Sponsored
FPC address** and the `v4.3.1` versioned getting-started page to the
live `5.0.0-rc.2` testnet values.

Two files, +5/−5 (identical to AztecProtocol#24471 — resulting blob SHAs
`e7521e40cef` and `56c6a7445df` match):

- `docs/docs-developers/getting_started_on_testnet.md` —
`SPONSORED_FPC_ADDRESS` `0x261366…7880` →
`0x1969946536f0c09269e2c75e414eef4e21a76e763c5514125208db33d7d944d7`
-
`docs/developer_versioned_docs/version-v4.3.1/getting_started_on_testnet.md`
— install/warning version `4.3.1` → `5.0.0-rc.2`, `NODE_URL`
`https://rpc.testnet.aztec-labs.com` →
`https://v5.testnet.rpc.aztec-labs.com`, `SPONSORED_FPC_ADDRESS`
`0x08b888…f765b` → the same `0x1969…944d7`

## Validation

Verified against the **live rc.2 testnet**
(`https://v5.testnet.rpc.aztec-labs.com`, rollupVersion `2787991301`)
via `node_getContract`:

- `0x1969946536…944d7` → **deployed** (version 2, contractClassId
`0x095a9366d37ca82e92326aa9dea8c917d9a9c859ebdf6a116299c5a9e5f7ef3c`) —
the real Sponsored FPC ✅
- `0x261366…7880` → **null** (not deployed) — the wrong value previously
on `next`
- `0x08b888…f765b` → **null** (not deployed) — the older wrong value in
the versioned page

## Notes

- Supersedes fork PR AztecProtocol#24471 — that one can be closed in favor of this.
- The same wrong FPC (`0x2613…`) is also present on `v5-next`'s
`getting_started_on_testnet.md`; a matching correction there is a
separate small PR (not included here).

---
*Created by
[claudebox](https://claudebox.work/v2/sessions/59cd7d98b38b9d90) ·
group: `slackbot`*
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