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 NAVOTAS Award a ₱3.7M contract to STRUKTURA TEKNIKA SERVICES COMPANYCities

Transaction hash:

ab662d6b6b400a2f8b470ea865fe6b0cf93bc4dbbc7c862bf231ff53cd47b673

Status:

Included and unchanged

Block:

#1,239 4,774 blocks after it

Position in block:

Transaction 39 of 60

Award day:

Sep 9, 2011 (15 yrs 2 mo ago)

From:

CITY OF NAVOTAS

To:

STRUKTURA TEKNIKA SERVICES COMPANY

Value:

₱3,662,035.78

Project:

ITB - Construction of Proposed Concrete Fence at Navotas Public Cemetery

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF NAVOTAS

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 #1,239 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 NAVOTAS awarded it to STRUKTURA TEKNIKA SERVICES COMPANY on 2011-09-09.
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 Navotas gave a "unmodified" 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 ab662d6b6b…47b673now …
2. Block Merkle root changed
stored 0b4b6a2cfa…1ae056now …
3. Block #1239 hash changed
stored c5684a2e04…749cc4now …

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

leaf ab662d6b6b400a2f8b470ea865fe6b0cf93bc4dbbc7c862bf231ff53cd47b673
01 L a9ec7972bfe1e5e7359d872820eb00aeb163b625ffcd03f71b1d922835e4b333
02 L 0cb45b089a5763b960640aa0d18103c044df71cd707d83532977fdaa9798a0e3
03 L 551913074eecf648ca56bddf2d3833eb386fcc638d09a4dbfb3f1934e52ccb7a
04 R fe3b9fa928e7b05e166638bc9a1e7d3b621bd4b380c87f2da65493cd3e77c3a6
05 R a67f436fee726412213106b6ec7cec3b8f6f202dcfe86f3cbd88817b675545ef
06 L d21c554977ee29dd4182e6745dc91a4c29b400b50fed5e73a6960a192c567d3f
root 0b4b6a2cfa131c3a5b1f185697f1ceea0b82c903797724710c9362b1371ae056