DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works

Transaction details

API

Transaction action

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED Award a ₱47.0M contract to A.L. SALAZAR CONSTRUCTION, INC.National agencies

Transaction hash:

ffc30e9a1beec8aad7ac40e004a21dcbc52431c63581aa0dae00e3b8b2649fe8

Status:

Included and unchanged

Block:

#4,466 1,547 blocks after it

Position in block:

Transaction 177 of 178

Award day:

Jun 1, 2021 (5 yrs 5 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED

To:

A.L. SALAZAR CONSTRUCTION, INC.

Value:

₱47,028,649.39

Project:

21OF0067

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED

Accountable officer:

Not stated in the source. PhilGEPS does not publish who certified the award.

Certification:

Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.

Demo signature:

Block #4,466 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
DPWH lists the funding source as "Regular Infra - GAA 2020 Augmentation", i.e. the FY2020 GAA. The exact UACS line is not given.
Partly
Open
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED awarded it to A.L. SALAZAR CONSTRUCTION, INC. on 2021-06-01.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 21OF0067: Completed, 100% physical progress.
Found
Open
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
DPWH marks the contract "Completed" (end 2022-06-08). The certificate itself is not published.
Partly
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

2 of 8 documents found, 2 partly. Under CADENA every step would be published within 7 working days and linked to this record.

Tamper test: try changing this record

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored ffc30e9a1b…649fe8now …
2. Block Merkle root changed
stored ca5974fed3…2d2d31now …
3. Block #4466 hash changed
stored 32fd88fcf2…762060now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 177 records. Each step hashes the current value together with the sibling shown.

leaf ffc30e9a1beec8aad7ac40e004a21dcbc52431c63581aa0dae00e3b8b2649fe8
01 L ff01d43249060404b2a45373b8d44e712eec0b540e20fe546169a1ba8819ac4a
02 R 10b1e4c95ab6c1345968ab9da0f03e057b4e2e8c0788f9e8f9d03b069ab4d16c
03 R fb3b09d4764136a649bee94d68cae0453fe24b2c347f2c03d15f890d29b42f27
04 R afb924e6ddb01c4768157cde36f9a9e875ca4e9ef641e60ca0cd7b9932184b17
05 L 5b2b4041d3eb3d2dfaff6b7ce387a8941cb85b5e340c9f8cb6885ea5ef187f0d
06 L 5cde200a841f4fed2e6f7c017a18ae31bdec4a0d9fcd7e29ebe3936ed9682648
07 R 3892265da1f4c9f5ec7a563e33bf095903c2939eb66e3ea9cb467875676ce197
08 L 5f7f4445d972b49591f38f607dd23430575fd9455cb7c2925174dcfae70545eb
root ca5974fed34cb5ae81baaee3894019dba0f3cd3746123e7426068d1ecb2d2d31