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

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱1.7M contract to PM CONSTRUCTION AND TRADINGCities

Transaction hash:

64bcb6f211ab7d459e0daec6c162287e95fdb5d6bbeae8e06ec055734ca2b384

Status:

Included and unchanged

Block:

#1,470 4,543 blocks after it

Position in block:

Transaction 22 of 57

Award day:

Jun 1, 2012 (14 yrs 5 mo ago)

From:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

To:

PM CONSTRUCTION AND TRADING

Value:

₱1,699,064.61

Project:

Construction of One (1) Storey Three (3) Classroom School Building at Mangga Bolong Elementary School, Bolong

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

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 #1,470 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)
The award does not say which budget line pays for it.
Not published
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)
CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to PM CONSTRUCTION AND TRADING on 2012-06-01.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
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)
No completion certificate published.
Not published
8. Audit
COA annual audit report · Sec. 5(e)(iii)
COA's CY2024 audit of City of Zamboanga gave a "qualified" opinion on its financial statements (not specific to this contract).
Partly
Open

1 of 8 documents found, 1 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 64bcb6f211…a2b384now …
2. Block Merkle root changed
stored 188f6ed330…a2b0dcnow …
3. Block #1470 hash changed
stored b4f0738779…8ba068now …

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

Merkle proof (6 steps)

How this one record is tied to the block's Merkle root, without needing the other 56 records. Each step hashes the current value together with the sibling shown.

leaf 64bcb6f211ab7d459e0daec6c162287e95fdb5d6bbeae8e06ec055734ca2b384
01 R 67979d9ace62d5451c55cc9eb691f9ea8996a32d51a6eba83eb22102aaa8a501
02 L fc5d8d5e50ad86aff113366057f22c72980813788d1468a9327cd76d18d0c5fb
03 L d203d6529a1de151e7b24c151eca41d5120118036d38353df28cf48a98c0dc8c
04 R a39079e9d2a07c847a5bd30e7157943088ce78ab7b082d7bebdafce8d435087a
05 L 1494cab52f31b19da43f0aee588c4c42206b08a931c9a1632e493dc743751ab7
06 R 520b31fce9a285019945ed9de894850251cb0dd6aea6c220e7d0230b118c4709
root 188f6ed330f7b807006aa782c8484e2407525f5d30d2cf207868877a0fa2b0dc