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

PROCUREMENT SERVICE - PURCHASING DIVISION Award a ₱7.7M contract to TRI-EX TOWER CO., INC.National agencies

Transaction hash:

fd8eb2a9bd70cf3b089d8a5f0e4ca50a1901e383dfa8a625b17d2e6dcae86c5f

Status:

Included and unchanged

Block:

#459 5,554 blocks after it

Position in block:

Transaction 4 of 6

Award day:

Oct 30, 2008 (18 yrs ago)

From:

PROCUREMENT SERVICE - PURCHASING DIVISION

To:

TRI-EX TOWER CO., INC.

Value:

₱7,692,000.00

Project:

TV Tower Design, Fabrication, Erection and Installation of Antenna Panels for the National Broadcasting Network

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

PROCUREMENT SERVICE - PURCHASING DIVISION

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 #459 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)
PROCUREMENT SERVICE - PURCHASING DIVISION awarded it to TRI-EX TOWER CO., INC. on 2008-10-30.
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)
No COA finding linked to this contract.
Not published

1 of 8 documents found, 0 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 fd8eb2a9bd…e86c5fnow …
2. Block Merkle root changed
stored f6a4c10d53…f771a7now …
3. Block #459 hash changed
stored e040a44fa0…c71334now …

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

Merkle proof (3 steps)

How this one record is tied to the block's Merkle root, without needing the other 5 records. Each step hashes the current value together with the sibling shown.

leaf fd8eb2a9bd70cf3b089d8a5f0e4ca50a1901e383dfa8a625b17d2e6dcae86c5f
01 R fd9c9d163c20a5dd88a9f65d346819d11f04e4d1ba26b6b1cae1e20baf4ff122
02 R 0a81db3f725102fd1bac1424595af484e5179158a27d48c9af0e2b5ddd1b061c
03 L 949af0594005b2e672699ca73adcbc72c52b775cbec3155ae1db8ad263e53950
root f6a4c10d535b208221a8945ac3fcd854f31e38cdcd798f0d4746038312f771a7