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 ₱8.5M contract to J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTORCities
Transaction hash:
09160e9a901bcfe84b2bd7c5b576ea43fb52982609c61525d9864834f63e5c87
Status:
Included and unchanged
Block:
#605 5,408 blocks after it
Position in block:
Transaction 2 of 19
Award day:
May 25, 2009 (17 yrs 5 mo ago)
Value:
₱8,495,261.53
Project:
I-2008-106 Construction of 2 Storey 6-CL Schoolbuilding, Calamba Elementary School, Barangay No. 7
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 #605 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 J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTOR on 2009-05-25.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 09160e9a90…3e5c87now …
- 2. Block Merkle root changedstored 59c83288d2…6138f2now …
- 3. Block #605 hash changedstored a9dc19dc74…ecfccbnow …
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 09160e9a901bcfe84b2bd7c5b576ea43fb52982609c61525d9864834f63e5c87
- 01 R 10cba678a3040be666f7df34142a87746f7bda756e421f64f5d9ea464640366b
- 02 L 2821894f462e5a0d3cebea7eec09bf5f7d493022c6793a97ff0aaac6552abf4e
- 03 R 01164c5bb2cf35401dd5efec76ecb1f74b44ce57b004d5d31190a22d8c365ca3
- 04 R 692898607cc18899923a5ced7880499a4305d9de60dadfbc5d22f3db815efd60
- 05 R 6302fcf9ef2eb01dc8d07a563ca06ba9cd31d72f695b3ac8d43ce1269c8fa083
- root 59c83288d255159b08fe0250ddadfe7bef87f5331ad2f153ce8756b07b6138f2