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-BULACAN 1ST DEO Award a ₱494.8K contract to HALREY CONSTRUCTION INC.National agencies

Transaction hash:

ef2ef2b1152d50be9d890d456d7b78d1f4429517f03b282eb90ba04e7a6ee3bb

Status:

Included and unchanged

Block:

#778 5,235 blocks after it

Position in block:

Transaction 34 of 38

Award day:

Jan 18, 2010 (16 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS-BULACAN 1ST DEO

To:

HALREY CONSTRUCTION INC.

Value:

₱494,793.93

Project:

Construction of roads in Poblacion to Banga (dike) Plaridel, Bulacan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS-BULACAN 1ST 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 #778 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-BULACAN 1ST DEO awarded it to HALREY CONSTRUCTION INC. on 2010-01-18.
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 ef2ef2b115…6ee3bbnow …
2. Block Merkle root changed
stored 9133652f3d…d8933enow …
3. Block #778 hash changed
stored 4392ba7f68…08295anow …

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

leaf ef2ef2b1152d50be9d890d456d7b78d1f4429517f03b282eb90ba04e7a6ee3bb
01 R f3c499ad1336b13a9a1c2b024b8c96a043474a2efc154ba2010edc7fdb759b77
02 L cbee85085c66ec8276e944e3970a73999f44dcff33020d35cc32dff67d9be668
03 R 8f8a15c4fa3e4cee3cdfac2d2df91b3cef166416abb6caa1e8ad2178673af1f3
04 R b8e32f7bf1af18d3a8c81a10c1c00185e31c60f72fc959497fd71051904c1aaf
05 R 64d3421d3964d98d83ff8511674a798aab406fcba501d6beb8d14d186df5109a
06 L a78ce6d5a02b19886c353022871a90e9be5a34e12104449ffcd0117481c97bef
root 9133652f3d6da42848f4ad44214ed17d19d15c02d899bbfb8412fc7d0ed8933e