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 - QUEZON 1ST ED Award a ₱481.4K contract to R.A MENDIOLA CONSTRUCTION & DEVELOPERNational agencies

Transaction hash:

b520270ed7e02a64ab4bba49005d3cbe1192b576791c39c607138320747ae6f8

Status:

Included and unchanged

Block:

#1,485 4,528 blocks after it

Position in block:

Transaction 30 of 44

Award day:

Jun 20, 2012 (14 yrs 4 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 1ST ED

To:

R.A MENDIOLA CONSTRUCTION & DEVELOPER

Value:

₱481,403.84

Project:

Construction/Rehabilitation/Upgrading of Farm to Market Road Barangay Amolongin, Infanta,Quezon

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 1ST ED

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 #1,485 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 - QUEZON 1ST ED awarded it to R.A MENDIOLA CONSTRUCTION & DEVELOPER on 2012-06-20.
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 b520270ed7…7ae6f8now …
2. Block Merkle root changed
stored 3a22ec5671…fca4c3now …
3. Block #1485 hash changed
stored 1be32dfe0f…22d849now …

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

leaf b520270ed7e02a64ab4bba49005d3cbe1192b576791c39c607138320747ae6f8
01 R b5fbc8e79c629d1b0239e1ed1f0b101dfa8e7be17aa687ecb1aaf02d0b83d597
02 L 1c5484fa3a0267b6c97e7e69f67eed9f8bbb69321151b3694b96f0a7b4158942
03 L 4f5024882c27e30e443d6e2d576e587a8ccaeeb6ea0d6459213fa846dee03f63
04 L 2a2dad6efd2684cf2f2ff4fbdaefefe1f3a4f59be940a42d2d67e7da705d10e0
05 L 600ff07ac91f95922b0a783c62ffabbd3dd4746a11c0adacd73e2743efde2679
06 R c3f087d2b5ad60920fb3ec94847f646edc56f691969290a295ccc0166b062411
root 3a22ec567160d7dbd950f7bddcf5f0334c1a463a2f42d349f31b1efc87fca4c3