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 - CARAGA Award a ₱83.7M contract to VICENTE T. LAO CONSTRUCTIONNational agencies

Transaction hash:

ac73358d520d5696efdfdcdd64c7fd584138f86045e522f7939b03f2add42a38

Status:

Included and unchanged

Block:

#1,238 4,775 blocks after it

Position in block:

Transaction 28 of 41

Award day:

Sep 8, 2011 (15 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CARAGA

To:

VICENTE T. LAO CONSTRUCTION

Value:

₱83,718,104.39

Project:

Concreting of NRJ - Cuevas - Bislig Road

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CARAGA

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 #1,238 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 - CARAGA awarded it to VICENTE T. LAO CONSTRUCTION on 2011-09-08.
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 ac73358d52…d42a38now …
2. Block Merkle root changed
stored 7b475ae6ac…25be1anow …
3. Block #1238 hash changed
stored 1b32854ec7…a43bb5now …

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

leaf ac73358d520d5696efdfdcdd64c7fd584138f86045e522f7939b03f2add42a38
01 R b0b20187b21cc0644fe7ae15d24741f25accd5c29453914fd10fea9ae4671c24
02 R df323e29165788b06ab96fc4f25b1e8e7b8197739e0f589267cdf2185eb2029e
03 L c47055570333ae11d4f932df1b762f36ce2c74144969729e7eb6fa3602607cac
04 L a237538d490f3a5e82938b14a869307e4ef7d145d006dde1b42812f5c6348e95
05 L c99238592ef2bab998c7d4d8fdcfb573009039b8c1837af300e6aeb3c280fbad
06 R 442ae8e544bb10eb9b19bb62037e07aa4ecbbb1807f7fa74c7d2a2008671281a
root 7b475ae6ac8fcde387dc5992d5c515c0c03d426b662251bb143168d40e25be1a