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 ₱943.1K contract to ZAMBOPEN CONSTRUCTIONCities

Transaction hash:

eeb23c17846bf42efbc8ecbc550ce9051d2ddfb11d8b7f68fcbf84f073ad080c

Status:

Included and unchanged

Block:

#1,402 4,611 blocks after it

Position in block:

Transaction 32 of 34

Award day:

Mar 15, 2012 (14 yrs 7 mo ago)

From:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

To:

ZAMBOPEN CONSTRUCTION

Value:

₱943,079.71

Project:

Concreting of Bridge Approaches at Sitio Piña-San Isidro Suspension Footbridge, Bunguiao

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 #1,402 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 ZAMBOPEN CONSTRUCTION on 2012-03-15.
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 eeb23c1784…ad080cnow …
2. Block Merkle root changed
stored 0ce9a1c7d5…e0d173now …
3. Block #1402 hash changed
stored 91d16c1fb8…08eb23now …

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 33 records. Each step hashes the current value together with the sibling shown.

leaf eeb23c17846bf42efbc8ecbc550ce9051d2ddfb11d8b7f68fcbf84f073ad080c
01 R f7943e0bd37e957d3be6c58236f163fe45cf9a1aa699e005de06f8925e80b685
02 R 892f72ac03fe05d62cdd4fcb05ffb80f19f9724ca81f9fe338b3b3c1ce41531f
03 R cc635b0e1521c58a73da0809e13477f5f8461239278bc9042978b21c57b63bc2
04 R 9947efec380a84024301a10dbcad7e1e21a7add8c82c35d316814ee5019499fd
05 R 51cf0067bf0db1cc2bd1acd1488f453711cf22518397dc1d9c1bb8cce91b44e1
06 L a416b4c8a4431404567a62972fdf0c5a3b8d12e2dfe49a523412f3d70f09d9b6
root 0ce9a1c7d57dd1442f697ecaa70ea5e02b81812e757bce4bca3895304fe0d173