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 - BATAAN 2ND DEO Award a ₱1.9M contract to L.R. DE GUZMAN CONSTRUCTIONNational agencies

Transaction hash:

a0e980e5dd7c5bfdaa94ec5e268f47787b1bf895f5da87f749675004fdeec3ff

Status:

Included and unchanged

Block:

#1,265 4,748 blocks after it

Position in block:

Transaction 32 of 56

Award day:

Oct 11, 2011 (15 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO

To:

L.R. DE GUZMAN CONSTRUCTION

Value:

₱1,916,433.48

Project:

Rehab./Const. of Multi-Purpose Building BPSU(BAlanga Campus) Don MAnuel Banzon Ave., Balanga City, Bataan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND 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 #1,265 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 - BATAAN 2ND DEO awarded it to L.R. DE GUZMAN CONSTRUCTION on 2011-10-11.
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 a0e980e5dd…eec3ffnow …
2. Block Merkle root changed
stored 590b478897…e6a18anow …
3. Block #1265 hash changed
stored 31d71f1210…6d8430now …

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

leaf a0e980e5dd7c5bfdaa94ec5e268f47787b1bf895f5da87f749675004fdeec3ff
01 R a3959b6ed9c7f1da8aecbb20ccb379273357df24b173871ab8f447261b0085d2
02 R 37d09b87dbb738493446edb55bd9332edeec5e7d59fe08800921881f2ef97088
03 R 68910a5b5c8c7d36629f092a93d25b0a5235ca9a355d59438dfe78e933da2504
04 R fe5b54adb27381cf14a8d2092e1b6fb9fd76dd5c897ed3ce14e564c6b26e53c0
05 R 4f246abd944950cbaadc44153735e41d3f2ce14b5947f679f67b0d6e278652a3
06 L fb670cee7b6b251aad06c3bf2c315c56d957400c76b94ae2e2f72e51fe003b58
root 590b47889709aede436b472b3db6598d68c73c1eb0f5b0cbf579a609ede6a18a