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 - ILOCOS SUR 2ND DEO Award a ₱19.7M contract to E. E. MADAYAG CONSTRUCTIONNational agencies

Transaction hash:

ee8aa139a5366c9990cd1c2b877e368b88425d957d7dfbfd9e7790faea2a5221

Status:

Included and unchanged

Block:

#4,193 1,820 blocks after it

Position in block:

Transaction 2 of 3

Award day:

Aug 15, 2020 (6 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 2ND DEO

To:

E. E. MADAYAG CONSTRUCTION

Value:

₱19,694,049.45

Project:

20AD0110

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 2ND 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 #4,193 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 "Outside Infra - GAA 2020 DepEd BEFF", i.e. the FY2020 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 - ILOCOS SUR 2ND DEO awarded it to E. E. MADAYAG CONSTRUCTION on 2020-08-15.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 20AD0110: 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 2021-04-26). 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 ee8aa139a5…2a5221now …
2. Block Merkle root changed
stored 7b184dd31a…f703afnow …
3. Block #4193 hash changed
stored 448a73b53c…347a57now …

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

Merkle proof (2 steps)

How this one record is tied to the block's Merkle root, without needing the other 2 records. Each step hashes the current value together with the sibling shown.

leaf ee8aa139a5366c9990cd1c2b877e368b88425d957d7dfbfd9e7790faea2a5221
01 R ee8aa139a5366c9990cd1c2b877e368b88425d957d7dfbfd9e7790faea2a5221
02 L 7f063509e35c7c19eea290d216a241332b1342ba32ed9fd9737656bfe614bf09
root 7b184dd31aa2531c2038f35eb9f3923d46c4f2f453633760ab555617bff703af