feat(consensus): hold EvoNode shares and multiple payouts behind a new evo_shares deployment

[PastaPastaPasta]

Issue being fixed or feature implemented

Platform does not support EvoNodes with shared collateral or with more than one owner payout yet, and asked that v24 not allow them. v24 introduces both (shared masternode collateral and the version 3 payout list), and today an EvoNode can already register or update with several owner payouts; only shared EvoNode registration is rejected, statelessly.

This PR keeps both disabled for EvoNodes in v24 and adds a deployment, evo_shares, that lifts the restriction later (planned for v24.1, once Platform supports it) without a chain split between v24 and v24.1 nodes.

Important

Mainnet v24 and evo_shares start times are both still TODO. They must be set to the same value before release. A new unit test (evo_shares_follows_v24) fails if evo_shares' parameters ever differ from v24's on any network, so the mainnet start time cannot be filled in for only one of them.

Why v24 does not sign it instead of using a later start time

The new deployment's consensus parameters ship in v24 and must be identical in v24.1: nStartTime is consensus (it gates versionbits STARTED, and an MNHF signal mined before it is treated as expired), so v24.1 cannot move it, and a start time could not express "once enough of the network runs v24.1" anyway. Instead v24 masternodes simply do not sign the evo_shares MNHF signal. A masternode-activated deployment cannot start until its signal is mined, so evo_shares stays inactive until masternodes running v24.1 sign it; v24 nodes follow it from then on like any other deployment.

What was done?

1. refactor: SpecialTxRules (filled by GetSpecialTxRules()) replaces the bool is_v24_active parameter of CheckSpecialTx, ProcessSpecialTxsInBlock and their callers, so another deployment can be passed without touching every caller again. No behaviour change.
2. DEPLOYMENT_EVO_SHARES (evo_shares, bit 14, masternode-activated) with v24's window, thresholds and start times on every network. The MNHF signer skips it; v24.1 drops that skip.
3. Rules, until evo_shares is active:
   • an EvoNode ProRegTx with a share table is rejected with bad-protx-shares-evo. The rule moves from the stateless CProRegTx::IsTriviallyValid() into CheckProRegTx();
   • an EvoNode ProRegTx or ProUpRegTx with more than one owner payout is rejected with the new bad-protx-payouts-evo. The ProUpRegTx check also covers operator key rotation;
   • neither rule needs a v24 gate: share tables and payout lists only exist in version 3 payloads, which need v24.
   • The shared registration consent digest also covers an EvoNode's platformNodeID. Only the digest of EvoNode registrations changes, and those were invalid until now; the digest of a regular shared registration is unchanged.
4. RPC: protx shared_register_prepare_evo takes the arguments of protx shared_register_prepare followed by platformNodeID, platformP2PAddrs and platformHTTPSAddrs. Preparing a shared EvoNode registration fails until evo_shares is active. Dash Qt still prepares regular shared registrations only; EvoNode support there is left for v24.1.
5. Tests and release notes (below), and a small follow-up refactor that moves register_evo / update_service_evo onto the platformNodeID helpers added for the new RPC.

How Has This Been Tested?

macOS arm64, debug build (--enable-debug --enable-werror).

• make check-equivalent: the full test_dash suite passes.
• Every commit builds and passes evo_*, versionbits_tests and miner_tests on its own.
• New unit tests:
  • evonode_registration_needs_evo_shares / evonode_payout_update_needs_evo_shares: table-driven CheckProRegTx / CheckProUpRegTx cases (EvoNode vs regular masternode, one vs two payouts, shared, operator key rotation, evo_shares on/off);
  • shared_reg_consent_hash: platformNodeID is covered for EvoNodes and not for regular masternodes;
  • evo_shares_follows_v24.
• New functional test feature_evo_shares_activation.py: a masternode signs another masternode-activated deployment (testdummy) but never evo_shares, which stays defined; an EvoNode keeps one owner payout until evo_shares is active (registration, registrar update, update with operator key rotation). It then lets miners activate evo_shares (-vbparams with EHF disabled) and checks EvoNodes can update and register with several owner payouts.
• feature_masternode_shares.py: shared EvoNode preparation fails before activation; the same signed registration is rejected with bad-protx-shares-evo in a block below the activation height; after activation it registers, is paid split by shares, updates its Platform service, a share reward and its voting key, and dissolves with a refund to every share.
• Mutation checks, run locally: disabling either consensus rule fails exactly the restricted cases of the new unit tests; letting the signer sign evo_shares fails feature_evo_shares_activation.py.
• Also run: rpc_blockchain.py, rpc_help.py, feature_mnehf.py, feature_versionbits_warning.py, mining_basic.py, feature_protx_version.py, feature_dip3_deterministicmns.py, rpc_netinfo.py, feature_asset_locks.py, wallet_dash_rpcs.py; Python, whitespace, file, include, assertion and format-string lints.

Breaking Changes

Consensus change to rules that are not active on mainnet or testnet yet:

• Testnet: v24 is not active yet (the tip coinbase is still CbTx version 3), so no historical block is affected. Testnet masternodes should run a build with this change before v24 activates there, otherwise an EvoNode registered or updated with several owner payouts after activation would split them from upgraded nodes.
• Devnets where v24 is already active (its devnet start time is July 2025): any EvoNode registered or updated there with more than one owner payout makes those blocks invalid for this build, so such devnets need to check (protx list registered 1) or be reset.
• New RPC protx shared_register_prepare_evo.

Follow-up outside this repo: the shared masternode DIP should describe the platformNodeID field in the EvoNode consent digest.

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have assigned this pull request to a milestone (for repository code-owners and collaborators only)

🤖 Generated with Claude Code

[coderabbitai]

Walkthrough

The change adds the evo_shares deployment and carries its activation state through special-transaction validation and block processing. Before activation, EvoNode registrations and updates reject multiple owner payouts, and shared EvoNode registration is unavailable; regular masternodes are not subject to these restrictions. The change also adds protx shared_register_prepare_evo, includes platformNodeID in EvoNode shared-registration consent digests, and adds unit and functional coverage for activation and shared-registration behavior.

Priority: ⬆️ High

Estimated code review effort: 4 (Complex) | ~45 minutes

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant SharedRegisterPrepareEvo
  participant PrepareSharedRegistration
  participant EvoSharesActive
  participant ChainManager
  Client->>SharedRegisterPrepareEvo: Submit EvoNode registration and Platform fields
  SharedRegisterPrepareEvo->>PrepareSharedRegistration: Build typed shared-registration request
  PrepareSharedRegistration->>EvoSharesActive: Check deployment activation
  EvoSharesActive->>ChainManager: Read activation state under chain lock
  ChainManager-->>EvoSharesActive: Return activation state
  EvoSharesActive-->>PrepareSharedRegistration: Return activation state
  PrepareSharedRegistration-->>SharedRegisterPrepareEvo: Return preparation result
  SharedRegisterPrepareEvo-->>Client: Return prepared registration or error

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Suggested reviewers: thepastaclaw

Merge Risk: 🟡 Moderate · up to 787ad

Evo Shares cannot activate on mainnet with the current start time. Set its scheduled start time alongside v24’s before release.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 22.58% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 124 functions across 27 files. (1 skipped…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the main change: holding EvoNode shares and multiple payouts behind the new evo_shares deployment.
Description check	✅ Passed	The description explains the deployment, consensus rules, RPC changes, compatibility risks, and testing, all of which relate to the changeset.

Full details: Docstring Coverage

Explanation

Docstring coverage is 22.58% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 124 functions across 27 files. (1 skipped: 1 unsupported.)

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[thepastaclaw]

✅ Final review complete — no blockers (commit 787ad82) · triage: critical

[thepastaclaw]

Final validation — Phase 1 + Phase 2

Static verification of the exact PR head found no actionable in-scope defects. The EvoNode restrictions, deployment-state propagation, separation of local signalling from consensus enforcement, consent digest change, and RPC argument mapping are consistent with the stated goal and accompanying regression coverage; the seven-commit stack is logically organized. In the supplied CI snapshot, Lint and ClangFormat passed, while source-build jobs remained running or queued; no builds or tests were run locally in this verification lane.

Review provenance

Source: reviewer 1: gpt-6.1-sol (agent: phase2-reviewer, role: general); reviewer 2: gpt-6.1-sol (agent: phase2-reviewer, role: dash-core-commit-history); reviewer 3: muse-spark-1.3-contributor (agent: phase1-reviewer, role: general); final verifier: gpt-6.1-sol (agent: sol-verifier, role: final-verifier)

• Triage: critical by gpt-6.1-sol (effort low) — The cross-cutting change modifies consensus deployment parameters in src/chainparams.cpp and deployment-dependent EvoNode registration and payout validation in src/evo/providertx_service.cpp, while also changing registration consent signature digests in src/evo/providertx.cpp.
• Phase 1 reviewers: muse-spark-1.3-contributor — general (completed, effort xhigh); agent phase1-reviewer
• Phase 1 model: muse-spark-1.3-contributor — not quota-gated; passed over gemini-3.8-flash-high (antigravity below 15% reserve: weekly 15% left, 5h 100% left), glm-5.3-flash (not used above high effort; tier asks max)
• Single stage: Phase 1 and Phase 2 reviewed this head side by side, with no blocker gate between them (triage tier)
• Fresh verifier: gpt-6.1-sol — final-verifier; agent sol-verifier
• Phase 2 reviewers: gpt-6.1-sol — general (completed, effort xhigh); agent phase2-reviewer, gpt-6.1-sol — dash-core-commit-history (completed, effort xhigh); agent phase2-reviewer

[knst]

that's a duplication of existing functionality; signal already could be set as vbparams; should be removed along m_signal_deployment.

Basically, v24 no need to ship signing of ehf signal for evo_shares fork at all.

So, for testing, it could be switched by enabling / disabling ehf signal.

once v24 is out and we are ready - could just sign it unconditionally every time without extra flags.

vbsignals gone ; for tets vbparams is used; ehf enabled - testing v24 variant; ehf disabled - testing evo_shares variant.

[PastaPastaPasta]

Agreed, reworked as you suggested in 787ad82: m_signal_deployment, -vbsignal and the miner/getblocktemplate masking are gone. The v24 EHF signer simply skips evo_shares, so the deployment can't start until masternodes running a later release sign it, and that release can sign it unconditionally. Tests use -vbparams only: evo_shares as shipped (EHF enabled) for the v24 variant, and with EHF disabled to let miners activate it.

---

🤖 Posted autonomously by Claude on behalf of pasta.

[knst]

why this scenario is not in test/functional/feature_evo_shares_activation.py?

[PastaPastaPasta]

Moved: the EvoNode payout cases now live in feature_evo_shares_activation.py, checked as shipped and again after miners activate evo_shares. feature_masternode_payout_shares.py is back to its original content.

---

🤖 Posted autonomously by Claude on behalf of pasta.

[coderabbitai]

Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
Review comments at @src/chainparams.cpp:
- Line 222: Update the mainnet `DEPLOYMENT_EVO_SHARES` configuration in the
chain-parameter setup to use the same scheduled start time as `DEPLOYMENT_V24`
instead of `NEVER_ACTIVE`.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 50e00a1a-ae40-4fa5-886b-bc91e5c411dc

📥 Commits

Reviewing files that changed from the base of the PR and between 84a368e and 787ad82.

📒 Files selected for processing (6)

• doc/release-notes-7807.md
• src/chainparams.cpp
• src/llmq/ehf_signals.cpp
• src/test/versionbits_tests.cpp
• test/functional/feature_evo_shares_activation.py
• test/functional/feature_masternode_shares.py

🚧 Files skipped from review as they are similar to previous changes (1)

• doc/release-notes-7807.md

Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review.

[knst]

LGTM 787ad82

[thepastaclaw]

Re-review — Final validation — Phase 1 + Phase 2

Independent static review of the complete diff found no actionable in-scope defects: deployment gating is propagated through validation, mining, and replay; the signer exclusion, EvoNode consent digest, RPC support, and targeted tests match the stated rollout. The seven commits are coherent, and the matching unscheduled mainnet start times are intentional release setup, not a defect in this PR. No local builds or tests were run; the supplied CI snapshot shows successful Linux, macOS, ARM64, fuzz, SQLite, and no-wallet builds, with Windows, ASan, TSan, and lint checks still in progress.

🔴 0 blocking | 🟡 0 suggestion(s) | 💬 0 nitpick(s)

Review provenance

Source: reviewer 1: gpt-6.1-sol (agent: phase2-reviewer, role: general); reviewer 2: gpt-6.1-sol (agent: phase2-reviewer, role: dash-core-commit-history); reviewer 3: gpt-6-astra (agent: phase2-reviewer, role: general); reviewer 4: gpt-6-astra (agent: phase2-reviewer, role: dash-core-commit-history); reviewer 5: muse-spark-1.3-contributor (agent: phase1-reviewer, role: general); reviewer 6: gpt-6.1-sol (agent: phase2-reviewer, role: general); reviewer 7: gpt-6.1-sol (agent: phase2-reviewer, role: dash-core-commit-history); final verifier: gpt-6.1-sol (agent: sol-verifier, role: final-verifier)

• Triage: critical by gpt-6.1-sol (effort low) — The large, cross-cutting diff changes consensus acceptance in CheckProRegTx and CheckProUpRegTx in src/evo/providertx_service.cpp, adds deployment activation and signing policy, and changes EvoNode registration consent digests.
• Phase 1 reviewers: muse-spark-1.3-contributor — general (completed, effort xhigh); agent phase1-reviewer
• Phase 1 model: muse-spark-1.3-contributor — not quota-gated; passed over gemini-3.8-flash-high (antigravity below 15% reserve: weekly 15% left, 5h 100% left), glm-5.3-flash (not used above high effort; tier asks max)
• Single stage: Phase 1 and Phase 2 reviewed this head side by side, with no blocker gate between them (triage tier)
• Fresh final gate: an independent Phase-2 review ran after iterative findings were reconciled
• Fresh verifier: gpt-6.1-sol — final-verifier; agent sol-verifier
• Phase 2 reviewers: gpt-6.1-sol — general (completed, effort xhigh); agent phase2-reviewer, gpt-6.1-sol — dash-core-commit-history (completed, effort xhigh); agent phase2-reviewer, gpt-6-astra — general (completed, effort xhigh); agent phase2-reviewer, gpt-6-astra — dash-core-commit-history (completed, effort xhigh); agent phase2-reviewer, gpt-6.1-sol — general (completed, effort xhigh); agent phase2-reviewer, gpt-6.1-sol — dash-core-commit-history (completed, effort xhigh); agent phase2-reviewer
• Model comparison: every Phase-2 reviewer also ran on gpt-6-astra; the verifier weighed both sets without knowing which model wrote which

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