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 ₱439.6K contract to MAGNA RICH TRADING & CONSTRUCTIONCities

Transaction hash:

7c14f60b7e27c0a794388564f929a503b4c7a5cfc9a7b0506b85287a11c5bde4

Status:

Included and unchanged

Block:

#1,048 4,965 blocks after it

Position in block:

Transaction 9 of 19

Award day:

Jan 13, 2011 (15 yrs 10 mo ago)

From:

CITY OF CALAMBA, LAGUNA

To:

MAGNA RICH TRADING & CONSTRUCTION

Value:

₱439,594.60

Project:

I-2010-072 Rehabilitation of Schoolbuilding, Mabato NHS (Annex), Barangay Canlubang

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 #1,048 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 2011-01-13.
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 7c14f60b7e…c5bde4now …
2. Block Merkle root changed
stored 9a411f2e29…1a173bnow …
3. Block #1048 hash changed
stored 443ed04761…b632c6now …

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

leaf 7c14f60b7e27c0a794388564f929a503b4c7a5cfc9a7b0506b85287a11c5bde4
01 L 53e77fb49296706d6c7b7e2bc7554b0908d80d2a4b884734f21332d9d9fdb692
02 R dfb1e076ff528b195c10aa9742284903b309525557a38338cbbbc2fbfd70de49
03 R c202a98cd5a13b2ef5dee4d1cbe709a4b9c2c30e6ffdba1ab22b698976e2ca2e
04 L f374664bcbb677af7c345abbe8353342c0a38db153e5cce12976fbcc13d754ef
05 R 224255b50b09d2a7108f42aa535c91a78fc5b661d23042d3ac4cab7f7af7a352
root 9a411f2e29459e58f57d4dafeaf76efea4957c10caca4d35bbdf4a07201a173b