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 ₱549.0K contract to TRES MARIA CONSTRUCTIONCities

Transaction hash:

11b8e8739baba49170f6730ed1f3d3091d975145f3613dac2da8df48747de5d1

Status:

Included and unchanged

Block:

#1,210 4,803 blocks after it

Position in block:

Transaction 6 of 54

Award day:

Aug 5, 2011 (15 yrs 3 mo ago)

From:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

To:

TRES MARIA CONSTRUCTION

Value:

₱548,955.49

Project:

Rehabilitation/Improvement of Three (3) Storey Training Center at R.T. Lim Boulevard

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 #1,210 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 TRES MARIA CONSTRUCTION on 2011-08-05.
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 11b8e8739b…7de5d1now …
2. Block Merkle root changed
stored 0e99c5af68…28b6f5now …
3. Block #1210 hash changed
stored 7cfa64e1ef…463637now …

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

leaf 11b8e8739baba49170f6730ed1f3d3091d975145f3613dac2da8df48747de5d1
01 R 15dc26dbd16d50d74aa8cfcd64a358d79387342153fef18a33f3986b9d810c0f
02 L a4ec2523131a5c27a01e6701cf804421a2c068ced6b09b748c58c61bbd173a0a
03 L 9e0f43fdcadaf1042fd8f1fc2a165f098ab9091ca16c2d0d24968b1ab9ad7674
04 R d4e46fd3b0ad07b65806b4ff4622e3e85f75a9601ef73dc39dd90c14dac33bdd
05 R 59a6c3fbda0a2c35373338730211d951058e2a39272d49401561309362d7dcf4
06 R 6a35fb25f37b4adb735c9da220b335b6d287151faf7fef20aff73161bb390bb3
root 0e99c5af685f404ab045880a05dc46b0b048b67b16ba3a11438be4ed5b28b6f5