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 ₱48.2M contract to HALREY CONSTRUCTION INC.National agencies

Transaction hash:

f38eceb3bf1f1e6fdd573e0889f72fe383fa41d7df4fdc92ace863f963445aa1

Status:

Included and unchanged

Block:

#469 5,544 blocks after it

Position in block:

Transaction 32 of 33

Award day:

Nov 12, 2008 (18 yrs ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION IV-A

To:

HALREY CONSTRUCTION INC.

Value:

₱48,225,971.55

Project:

Concrete Paving of Marikina-Infanta Road, Little Baguio Section, Laguna Side

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 #469 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 HALREY CONSTRUCTION INC. on 2008-11-12.
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 f38eceb3bf…445aa1now …
2. Block Merkle root changed
stored 5f6d60030b…d4d155now …
3. Block #469 hash changed
stored 4809f17b60…ca9f08now …

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

leaf f38eceb3bf1f1e6fdd573e0889f72fe383fa41d7df4fdc92ace863f963445aa1
01 R f38eceb3bf1f1e6fdd573e0889f72fe383fa41d7df4fdc92ace863f963445aa1
02 R a69000676d89146f54299914b6da4c2358b5a808655412decca28fa790b85a9f
03 R a90d6ba3c1896e35fda67a6c719266702478a9cde3040cb42f3bd4f7d7e7bdba
04 R 76020b853ef8cb30a5994b53922defb39cc4532b2e52dbc2598a5b274bd4b53d
05 R 36564ba837811c2fd0ac336b10ac1f2e9bb5490aeab6be6cb1e930e7b49be507
06 L 0320f572698c133251d8acdbf02af2f9059374ebb169e0935425456fb88a9d2b
root 5f6d60030b0128ff1a5fc40f647c753f65cd679fb0b451a233c3ade5e7d4d155