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 ₱3.8M contract to M.C. DELA CRUZ ENTERPRISES AND GEN. CONTRACTORCities
Transaction hash:
84cbe3ee9fcca6724f1ca2cb716e69c9ae8f18ca3d568718e31a41ce85b89e72
Status:
Included and unchanged
Block:
#640 5,373 blocks after it
Position in block:
Transaction 13 of 16
Award day:
Jul 13, 2009 (17 yrs 4 mo ago)
Value:
₱3,805,534.58
Project:
I-2009-093 Construction of Sidewalk, Gutter and Drainage Canal, Bacnotan Drive, Barangay Real
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 #640 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 2009-07-13.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 84cbe3ee9f…b89e72now …
- 2. Block Merkle root changedstored 0ecca1f2fe…f2e0f6now …
- 3. Block #640 hash changedstored 146af41a4f…17f49dnow …
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 15 records. Each step hashes the current value together with the sibling shown.
- leaf 84cbe3ee9fcca6724f1ca2cb716e69c9ae8f18ca3d568718e31a41ce85b89e72
- 01 L 82b2a5b7b73e191d1d8aa9f902342a90e2fff15c4a97653a9e1569554eec5e25
- 02 R da75bea23ad640878a2d71ab8b95b51c28314915b4bcd72720405cdbe58cbe6f
- 03 L 222cd3cdebe82d19a2e92ca5688978020fe2801277ad112a8db8f1a16a187639
- 04 L 35804e6d309be5547d76ee5e87495415426c3e295e5aaa23c18ff8f39664fb31
- root 0ecca1f2fe8d4e2ef52aea8e2c987c0d44109c559898ddc857b87acd12f2e0f6