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 - REGION XII Award a ₱19.3M contract to VICENTE T. LAO CONSTRUCTIONNational agencies

Transaction hash:

d5aacea3211f963c5e2fca91594661bfcc48c1677e2ec4d92cad63723fce8394

Status:

Included and unchanged

Block:

#520 5,493 blocks after it

Position in block:

Transaction 7 of 11

Award day:

Jan 26, 2009 (17 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XII

To:

VICENTE T. LAO CONSTRUCTION

Value:

₱19,290,158.91

Project:

Rehabilitation/Improvement of Sarangani – Davao del Sur Coastal Road, Malapatan Poblacion Section, Malapatan, Sarangani Province

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XII

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 #520 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 - REGION XII awarded it to VICENTE T. LAO CONSTRUCTION on 2009-01-26.
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 d5aacea321…ce8394now …
2. Block Merkle root changed
stored 0984c14728…e0fa6bnow …
3. Block #520 hash changed
stored bf8d730705…a02992now …

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

leaf d5aacea3211f963c5e2fca91594661bfcc48c1677e2ec4d92cad63723fce8394
01 L 9e2d4d9dfb831ee17bfc56c3b9c15bfd303c9aed801c5c4f5e49aee95871749b
02 L 5c23aea5f0919a2e636c9a7694d8dfa87acfb49903d271c52ec07b3f6fd049ad
03 L 43614f0523a28eed9a282b5f247c175e91455316df5b66232d5f8bc563bfbfa6
04 R b3c090ab704b7ee0e112423f70a135be9c4c6bbe02ca488c560d05f64d302d30
root 0984c147287a299fb8e5f9087536b23d4212758c2e8c884a4562f0b85fe0fa6b