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 ₱808.6K contract to M.C. DELA CRUZ ENTERPRISES AND GEN. CONTRACTORCities
Transaction hash:
2cb42efd51cd1bae50008cc5a62be4b364e4c26d7f4a73fb6068ab689e790aad
Status:
Included and unchanged
Block:
#1,231 4,782 blocks after it
Position in block:
Transaction 18 of 89
Award day:
Aug 31, 2011 (15 yrs 2 mo ago)
Value:
₱808,603.67
Project:
I-2011-052 Improvement-Repair of 1-CL & Multipurpose Hall, Canlubang ES, Barangay Canlubang
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 #1,231 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 M.C. DELA CRUZ ENTERPRISES AND GEN. CONTRACTOR on 2011-08-31.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 2cb42efd51…790aadnow …
- 2. Block Merkle root changedstored aff7c26c11…afc640now …
- 3. Block #1231 hash changedstored 6f2a304f2d…666b27now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (7 steps)
How this one record is tied to the block's Merkle root, without needing the other 88 records. Each step hashes the current value together with the sibling shown.
- leaf 2cb42efd51cd1bae50008cc5a62be4b364e4c26d7f4a73fb6068ab689e790aad
- 01 R 2cb9735fa11a9111035a1bb7a96efdd9615e203d073b0332e1d46e2f2c15ebbb
- 02 L 20d9ec81587587d09c183f21830175fc94e84810bb4d6b0111c72aaf7718eeac
- 03 R 82c447dc245743ba117fa14894d7d1c8db2593c4a6979756a6c54f65b0ce96f9
- 04 R 5f0fcb6fda66dd755bd07409a5995041e7128dd82489b7837065bf35621740f0
- 05 L 3a22732273ba6ebf9988fd78176ae4c4a0af04c77fdb5b4d1e3c4edbaa428a46
- 06 R b4da9133a321831a8e84e1f2cb54e81db8cd88d67434e0c8e486b5edef53009c
- 07 R 991e92bd64ee900d94bc10ef404e23f88ad439baccd7315b2604d709817b86fd
- root aff7c26c1187268c5866a1c46176807e7acc98e1339ccf9920593bb520afc640