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 ₱15.0M contract to M.C. DELA CRUZ ENTERPRISES AND GEN. CONTRACTORCities
Transaction hash:
8e76a9fb4d00a613b5f90f659bc2a4e8f9dfc852c8a4302eba816b817f86cadc
Status:
Included and unchanged
Block:
#5,086 927 blocks after it
Position in block:
Transaction 250 of 426
Award day:
Mar 7, 2023 (3 yrs 8 mo ago)
Value:
₱14,980,339.50
Project:
Barangay Hall
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 #5,086 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 2023-03-07.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 8e76a9fb4d…86cadcnow …
- 2. Block Merkle root changedstored bf9d81c51b…9b476dnow …
- 3. Block #5086 hash changedstored ccb2ba18e1…f4fc3anow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 425 records. Each step hashes the current value together with the sibling shown.
- leaf 8e76a9fb4d00a613b5f90f659bc2a4e8f9dfc852c8a4302eba816b817f86cadc
- 01 R 90de30a2c4d360806d3c4907a937ff96bedf62d055249e14b263ac3dc257acf6
- 02 L f94a8ef4803ad40fdd2c09875aa57d68256b58e9bb11c36a9d3c4977175e24c6
- 03 R 59b6c4b2151f5d4630855055a002a3f3b3f8a48a89616024094a9d4e9d8a6cc9
- 04 L ba844b2ab18495a8070f72820d20fdacd9b952ddf9849ce6b40dcf588168db5b
- 05 L 73cee737bc8f1489dc8e35b3e8154ea7ba42cf247c2a62e2a90d7445fc0c9b40
- 06 L 2678e56548230b7c8640036efbfd458582d1b52c4d5254af0b70e4be081246ea
- 07 L 6aed0ff1518e1ee9e4fa2c28ec617a37402c05bd4bbfb86059c59b3378908d7a
- 08 L b249e91e1fd9e83c0db1c4339fb3c684389b215d25a6fcb0fc49ae51a3908c9d
- 09 R 9c4d15c653dd2993d0fb071b717c230605ee7693a0e7173e030d94b71e6f97f2
- root bf9d81c51bf56c66119736f5b6f6f3dffbea7aeca52a091b60d81e04a69b476d