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
APITransaction action
CITY OF CALAMBA, LAGUNA Award a ₱19.7M contract to MAGNA RICH TRADING & CONSTRUCTIONCities
Transaction hash:
4243c723a22f92dfd7bacf2bcfb6116225902ba39838013bd7874cdb0088dd58
Status:
Included and unchanged
Block:
#517 5,496 blocks after it
Position in block:
Transaction 3 of 12
Award day:
Jan 21, 2009 (17 yrs 9 mo ago)
Value:
₱19,693,255.09
Project:
I-2008-088 Construction of 3-Storey School Building/City College of Calamba
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
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 #517 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)The award does not say which budget line pays for it.Not published
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)CITY OF CALAMBA, LAGUNA awarded it to MAGNA RICH TRADING & CONSTRUCTION on 2009-01-21.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)No completion certificate published.Not published
- 8. AuditCOA 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
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
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored 4243c723a2…88dd58now …
- 2. Block Merkle root changedstored c866c71482…64388fnow …
- 3. Block #517 hash changedstored 9b5fef5d4e…85f70cnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (4 steps)
How this one record is tied to the block's Merkle root, without needing the other 11 records. Each step hashes the current value together with the sibling shown.
- leaf 4243c723a22f92dfd7bacf2bcfb6116225902ba39838013bd7874cdb0088dd58
- 01 L 3ccda7a2978e156f173ba2f9a5bc55d7528ebde3879ad0022f8f54b6655b3370
- 02 L 2038d6f37c93012bad40d5d6ed396562984af10a7e55e827d670173011c916b5
- 03 R f5c666abe76001327018453bf3a86eb099bbaa557ec8117da3a09138574a485b
- 04 R 33de3a6986e1c3deb66d4ccef8512892e4b2b062554e457ae46f59c06a310adc
- root c866c71482b8ff09833e11525fec1bb8e6f933ea2b3f1f8f7f920ac9d664388f