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

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 1ST DEO Award a ₱9.5M contract to FOUR J CONSTRUCTIONNational agencies

Transaction hash:

4ca1eb6dabd729b1e66f259f5a8d3d8ad7c0addc4053e640659c8641d7bb1b32

Status:

Included and unchanged

Block:

#1,450 4,563 blocks after it

Position in block:

Transaction 36 of 103

Award day:

May 11, 2012 (14 yrs 6 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 1ST DEO

To:

FOUR J CONSTRUCTION

Value:

₱9,507,875.84

Project:

Repair/Rehabilitation/Improvement of Manila North Road Malolos Section km 39+700 to km 40+700 City of Malolos, Bulacan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 1ST DEO

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 #1,450 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)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 1ST DEO awarded it to FOUR J CONSTRUCTION on 2012-05-11.
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 4ca1eb6dab…bb1b32now …
2. Block Merkle root changed
stored 583920551e…a8a5f9now …
3. Block #1450 hash changed
stored 10d45f753c…95c357now …

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

Merkle proof (7 steps)

How this one record is tied to the block's Merkle root, without needing the other 102 records. Each step hashes the current value together with the sibling shown.

leaf 4ca1eb6dabd729b1e66f259f5a8d3d8ad7c0addc4053e640659c8641d7bb1b32
01 R 564f5ec58a319aa137635702b68d12cc74adabbb78adf69ee278b8df9e69cd2c
02 R 0b80cb82c447eca5198511c7c803353d8ce5c7ba5731d35abc5c52b869b26122
03 L ff69a72bbf2a025364d99a62daa86ba982e5380afff95149cb8a44b9fc8a0494
04 R 1274fe252bf1e1c42533aa3e1404c5e29b143e50b23e21cef4bbce76d40d2ba5
05 R bac81cb6517d87d38aa6ba8dba3637f190f57d1a517a7bce261795fe40f64c72
06 L 72b1832c8918fe20a5ba0b53327e777bc38b584041bab0e42e9964e4f09ee2cf
07 R b39f9666ce61b2af9e2b0b013d711bbbdc0bafe79a23091d6ba8103870aa53d5
root 583920551eff2860f439c3195cc65f8ca807a67583bc53fd1ece50267ca8a5f9