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

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE Award a ₱4.5M contract to R.D. SADSAD CONSTRUCTION AND TRADINGNational agencies

Transaction hash:

3e6fdf170dee9518e2e0b1f9a77b15719f233a8938505957a7ce90da30587ccb

Status:

Included and unchanged

Block:

#1,093 4,920 blocks after it

Position in block:

Transaction 6 of 31

Award day:

Mar 11, 2011 (15 yrs 8 mo ago)

From:

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE

To:

R.D. SADSAD CONSTRUCTION AND TRADING

Value:

₱4,464,720.00

Project:

ITPB No. 2011-04(11DI0021) Asphalting of road along Manila South Road km. 052+(-11) - km. 052+629 (intermittent section) Calamba City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE

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 #1,093 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)
DPWH-LAGUNA II DISTRICT ENGINEERING OFFICE awarded it to R.D. SADSAD CONSTRUCTION AND TRADING on 2011-03-11.
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 3e6fdf170d…587ccbnow …
2. Block Merkle root changed
stored b408578b3c…791b62now …
3. Block #1093 hash changed
stored 49ae024fb3…e63e92now …

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

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 30 records. Each step hashes the current value together with the sibling shown.

leaf 3e6fdf170dee9518e2e0b1f9a77b15719f233a8938505957a7ce90da30587ccb
01 R 4ac7c9cad4f736537e5ca6d5a1964756b4f00f0b8379887d839041130d9de832
02 L 189093060cb0a4ffeaa3edb0a88b7529b980d06a3d7017b0202754483efc9673
03 L 3f21ff71e90f2c629315a72840dde3335954f42796dd582a390f3d6763389e1a
04 R 8113d836a78514a685becb4b544003582fc372737f1087f41c4dc3901e3dc8c2
05 R 79a0498bd346f0e71ee5ee860e564c37e43f6382ece412e545e66cc49e5899ec
root b408578b3cbd27b44f1d3607663a5810046b50a438425a40275cb5a5a9791b62