Verify contract source-code lookup on Heima test explorer

[YoshiyukiSakura]

Context

On the Heima test explorer, this contract page does not appear to show detailed smart-contract information such as verified source code:

https://test-explorer.heima.network/contract/0x63c4545ac01c77cc74044f25b8edea3880224577

It is unclear from the current UI whether this is a lookup/display bug, or whether this specific contract simply never had source code uploaded.

Request

Could the Subscan side please do at least one of the following?

1. Check whether there is currently a bug preventing smart-contract details from being queried or displayed, especially source-code details.
2. Scan the database and provide one or more contract examples whose source code is known to exist and should be displayable, so we can distinguish an explorer/query problem from contracts that genuinely have no uploaded source code.

Expected outcome

Either:

• the issue is confirmed as a bug in contract-detail/source-code querying or rendering, with a fix path; or
• we get a known-good contract example that has uploaded source code and can be used to validate the explorer behavior.

This would help confirm whether examples without source code are missing data by design, or whether the explorer is failing to retrieve/display available contract details.

[crossagent-production-app]

CrossAgent status

Status: request changes
Task: github-litentry-subscan-essentials-24
Runtime task: task_3c6007ce0ac94bb9
Base branch: crossagent
Planning: ready size=m priority=p2
Resource queue: none
Small-model eligible: yes
Suggested labels: crossagent:size/m, crossagent:priority/p2, crossagent:root-cause
Suggested sub-issues: none
Created child issues: none

Identity mode. Posted by the configured GitHub API identity (mode=github-app-installation-token, source=github-app-installation-token, login=crossagent-production-app[bot]).

Issue: #24
PR: #25

Operator Links

• Admin Panel task trace: /api/tasks/task_3c6007ce0ac94bb9
• Evidence gate: /api/tasks/task_3c6007ce0ac94bb9/completion-check

Detected By

• Existing PR queue status was revalidated by completion-check.

Problem

• PR evidence gate failed: claim claim-task-outcome uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-validation uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-e2e uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-visual-state uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-pr-delivery uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-reproduce-the-issue-request-1 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-implement-the-smallest-safe-change-2 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-provide-validation-evidence-3 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-feedback-delta-1 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-feedback-delta-2 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-feedback-delta-3 uncertain: stale_due_to_feedback: ## Visual Evidence Semantic Review

Verdict: request changes

---

Observed UI facts from the PR/MR screenshot evidence

Image 1: subscan-contract-source-screenshot.png (PR comment attachment)

• Product surface: Heima Expl; claim claim-task-outcome reopened by blocking feedback; claim claim-validation reopened by blocking feedback; claim claim-e2e reopened by blocking feedback; claim claim-visual-state reopened by blocking feedback; claim claim-pr-delivery reopened by blocking feedback; claim claim-reproduce-the-issue-request-1 reopened by blocking feedback; claim claim-implement-the-smallest-safe-change-2 reopened by blocking feedback; claim claim-provide-validation-evidence-3 reopened by blocking feedback. PR: Verify contract source-code lookup #25. CrossAgent will not mark this issue as PR-created until completion-check passes with a valid delivery evidence summary and required visual evidence.

Next Owner

• Visual Evidence Reviewer / Evidence publisher agent

Next Action

• Review whether the screenshot actually proves the requested UI/data state, then repair the delivery evidence package and rerun completion-check.

Generated at: 2026-05-25T19:12:29.183Z

[YoshiyukiSakura]

Additional possible validation path:

Even if the current lookup/display mechanism is working correctly, it is also possible that the database simply does not contain any smart-contract source code records yet.

As a complementary check, we could deploy a simple test contract ourselves, submit/verify its source code through the normal flow, and then confirm whether the explorer can display that source code afterward. If that works, it would prove the contract-source display pipeline itself is functional, and the current missing-source examples are likely due to a lack of user-submitted source code rather than a system bug.

[YoshiyukiSakura]

Online-system evidence update (2026-05-24):

I checked the live Heima Preview Explorer and the public backend API path rather than relying on mocked PR evidence.

Findings:

• Real Chrome access to https://test-explorer.heima.network/contract/0x63c4545ac01c77cc74044f25b8edea3880224577 renders the contract verification form, not a displayed source-code view. The visible online page has empty Contract Name, empty Creator, empty Create At, Balance 0 HEI, and a Verify & Publish form.
• The same frontend's __ENV.js does not expose a custom NEXT_PUBLIC_API_HOST; the current UI code falls back to https://assethub-westend-lite.webapi.subscan.io.
• Public API metadata at POST https://assethub-westend-lite.webapi.subscan.io/api/scan/metadata reports networkNode=assethub-westend, enable_evm=true, and total_evm_contract=5823.
• A full cursor scan of POST /api/plugin/evm/contracts covered 59 pages / 5823 contracts. Result: nonEmptyVerifyStatusCount=0, namedContractCount=0.
• POST /api/plugin/evm/contract for 0x63c4545ac01c77cc74044f25b8edea3880224577 returns code=10002, message="contract not found" on that public API path.
• The highest-transaction contract returned by the public API, 0xe94c9f9a1893f23be38a5c0394e46ac05e8a5f8c, has verify_status="", contract_name="", source_code_len=0, and no ABI.

Conclusion:

This is online-system evidence that the currently reachable public API/frontend path does not provide any already verified/source-backed contract example. It does not yet prove the positive path of "deploy a contract, submit/verify source, then display source successfully". To prove that positive path, we still need a real deployed test contract plus a successful source verification submission on the live/self-hosted explorer environment.

[YoshiyukiSakura]

Direct DB evidence update (2026-05-24):

I rechecked this against the live/local tunnel database used by the Heima Subscan Essentials environment, not only the public HTTP API.

Database table inspected: evm_contracts.

Query summary:

SELECT
  COUNT(*) AS total_contracts,
  SUM(source_code IS NOT NULL AND source_code <> '') AS source_code_nonempty,
  SUM(verify_status IS NOT NULL AND verify_status <> '') AS verify_status_nonempty,
  SUM(contract_name IS NOT NULL AND contract_name <> '') AS contract_name_nonempty
FROM evm_contracts;

Result:

total_contracts = 22
source_code_nonempty = 0
verify_status_nonempty = 0
contract_name_nonempty = 0

Specific contract check:

SELECT address, contract_name, verify_status, CHAR_LENGTH(source_code) AS source_code_len
FROM evm_contracts
WHERE address = '0x63c4545ac01c77cc74044f25b8edea3880224577';

Result:

address = 0x63c4545ac01c77cc74044f25b8edea3880224577
contract_name = ''
verify_status = ''
source_code_len = 0

Conclusion: the current Heima database does not contain any contract source code records to display. The missing source-code display for the reported contract is therefore explained by missing uploaded/verified source data in the DB, not by finding an existing source-backed contract that fails to render.

[crossagent-production-app]

CrossAgent status

Status: request changes
Task: github-litentry-subscan-essentials-24
Runtime task: task_3c6007ce0ac94bb9
Base branch: crossagent

Identity mode. Posted by the configured GitHub API identity (mode=github-app-installation-token, source=github-app-installation-token, login=crossagent-production-app[bot]).

Issue: #24
PR: #25

Operator Links

• Admin Panel task trace: /api/tasks/task_3c6007ce0ac94bb9
• Evidence gate: /api/tasks/task_3c6007ce0ac94bb9/completion-check

Detected By

• Completion-check blocked the linked PR evidence package.

Problem

• PR evidence gate failed: git worktree must be clean; delivery evidence summary in GitHub pull request body/comment; rendered delivery evidence image in GitHub pull request body/comment; rendered A5 visual evidence image in GitHub pull request body/comment. PR: Verify contract source-code lookup #25. CrossAgent will not mark this issue as PR-created until completion-check passes with a valid delivery evidence summary and required visual evidence.

Next Owner

• Evidence publisher agent

Next Action

• Repair the PR evidence package only: complete checks, upload/render screenshot evidence when required, then rerun completion-check.

Generated at: 2026-05-24T19:02:47.789Z