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

CITY OF CALAMBA, LAGUNA Award a ₱50.0K contract to MAGNA RICH TRADING & CONSTRUCTIONCities

Transaction hash:

6b73597fd4b3d4e131bdc98ed347efa2d24b44bb17fa61dc719abcea934f6d27

Status:

Included and unchanged

Block:

#469 5,544 blocks after it

Position in block:

Transaction 12 of 33

Award day:

Nov 12, 2008 (18 yrs ago)

From:

CITY OF CALAMBA, LAGUNA

To:

MAGNA RICH TRADING & CONSTRUCTION

Value:

₱50,000.00

Project:

I-2008-013 Drilling and Construction of 1-unit Artesian Well/Barangay Palo Alto

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF CALAMBA, LAGUNA

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)
CITY OF CALAMBA, LAGUNA awarded it to MAGNA RICH TRADING & CONSTRUCTION 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)
COA's CY2024 audit of City of Calamba gave a "qualified" opinion on its financial statements (not specific to this contract).
Partly
Open

1 of 8 documents found, 1 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 6b73597fd4…4f6d27now …
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 6b73597fd4b3d4e131bdc98ed347efa2d24b44bb17fa61dc719abcea934f6d27
01 R 6f0f5afd8218fa66691e3bbf82c0285eaf5b2b7a5af18559c301e28b2a2cc568
02 R 607498730751fad7421fe36f9a0646e9a68ea9f727c1706a8507f9b4ff33b31a
03 L 2d43be90a8b9c91fb6fc7072487ffc2920aca8975961155c876305189617af92
04 L fd3b16e1855aad90774218b25a2f2a40f0326b1437d3a4209cea9d0936c424b9
05 R 0ae7a992b45c76246d360a64d61383c03cfd115caaae8fa6458df84b5cde0661
06 R 6b0a5d84de004f0280f52d59f2e7b178d18f2250269520c88aba9c51665a14f3
root 5f6d60030b0128ff1a5fc40f647c753f65cd679fb0b451a233c3ade5e7d4d155