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 CITY 1ST ED Award a ₱9.6M contract to PERRC INC.National agencies

Transaction hash:

ea9dad68bc5c3ba6ab7e7d5c693047dfa9d2663205aa61226aff923162a3394a

Status:

Included and unchanged

Block:

#4,645 1,368 blocks after it

Position in block:

Transaction 8 of 9

Award day:

Nov 30, 2021 (4 yrs 11 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 1ST ED

To:

PERRC INC.

Value:

₱9,583,006.40

Project:

21OF0230 Construction/Improvement of Multi-Purpose

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON CITY 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 #4,645 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)
DPWH lists the funding source as "Regular Infra - GAA 2021 LP", i.e. the FY2021 GAA. The exact UACS line is not given.
Partly
Open
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 CITY 1ST ED awarded it to PERRC INC. on 2021-11-30.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 21OF0230: Completed, 100% physical progress.
Found
Open
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)
DPWH marks the contract "Completed" (end 2024-02-12). The certificate itself is not published.
Partly
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

2 of 8 documents found, 2 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 ea9dad68bc…a3394anow …
2. Block Merkle root changed
stored 5c4f762c0d…da32afnow …
3. Block #4645 hash changed
stored 8b608b5597…5bf003now …

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

Merkle proof (4 steps)

How this one record is tied to the block's Merkle root, without needing the other 8 records. Each step hashes the current value together with the sibling shown.

leaf ea9dad68bc5c3ba6ab7e7d5c693047dfa9d2663205aa61226aff923162a3394a
01 R ea9dad68bc5c3ba6ab7e7d5c693047dfa9d2663205aa61226aff923162a3394a
02 R 75b618ee2a8c4abcfa78b926af6411c04af801794627f0c0098ecae5075936ae
03 R f6f30ff4db9ee4d6eac6537db80d6fdb103de26c1904cbcf5d6b95afacc57224
04 L 71fbc8a8e507f5fb31afa6794cbe335bbb19e77e2658551102f37bdf6f082875
root 5c4f762c0d65619772454ee669b6a787cb56ecd54252fef1bfbba03ce3da32af