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 IV-A Award a ₱31.9M contract to CHRISTIAN IAN CONSTRUCTION CORPORATIONNational agencies

Transaction hash:

8a2d3473a70f906a66ffa436977bbc7118acbc45b5cb5b9a3dc1aa1492c6b5fc

Status:

Included and unchanged

Block:

#567 5,446 blocks after it

Position in block:

Transaction 3 of 7

Award day:

Mar 30, 2009 (17 yrs 7 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION IV-A

To:

CHRISTIAN IAN CONSTRUCTION CORPORATION

Value:

₱31,930,181.85

Project:

Construction of Santisima Bridge (Santisima/Sto. Angel Bridge), Sta. Cruz, Laguna

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION IV-A

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 #567 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 IV-A awarded it to CHRISTIAN IAN CONSTRUCTION CORPORATION on 2009-03-30.
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 8a2d3473a7…c6b5fcnow …
2. Block Merkle root changed
stored 337b6305e4…540a3enow …
3. Block #567 hash changed
stored 5327265a85…fb13cfnow …

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

Merkle proof (3 steps)

How this one record is tied to the block's Merkle root, without needing the other 6 records. Each step hashes the current value together with the sibling shown.

leaf 8a2d3473a70f906a66ffa436977bbc7118acbc45b5cb5b9a3dc1aa1492c6b5fc
01 L 7dc8a38dd541061ef2f96498f728735260e9ae514d1394d555cb8662c40c4bc6
02 L 6e091a174bc658e9e893ace54b3cc12c6a32491ba7aad3aea456da2101053c37
03 R 63c8c8a51f8aef6b9e613266512255888a848c456e6d7732d9546a8c2c6b04c3
root 337b6305e43afe1388674b856e7b71f0f73dffcceb13f31b930675df6d540a3e