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 ₱754.8K contract to J.B. ALARCON ENTERPRISES & GEN. MERCHANT & CONTRACTORCities
Transaction hash:
f99527cb39b4e2044f2c5bfc6f09bbff91c3929771e5e80f4d2d2a208b68b0ef
Status:
Included and unchanged
Block:
#206 5,807 blocks after it
Position in block:
Transaction 3 of 4
Award day:
Nov 7, 2007 (19 yrs ago)
Value:
₱754,822.86
Project:
I-2007-073 Construction of Entrance Gate/Calamba Elementary School
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 #206 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 2007-11-07.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 f99527cb39…68b0efnow …
- 2. Block Merkle root changedstored c0f7095c57…2c28a6now …
- 3. Block #206 hash changedstored f81e408414…98dd1dnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (2 steps)
How this one record is tied to the block's Merkle root, without needing the other 3 records. Each step hashes the current value together with the sibling shown.
- leaf f99527cb39b4e2044f2c5bfc6f09bbff91c3929771e5e80f4d2d2a208b68b0ef
- 01 L bf6df09a101052c5f724f1a8523ae09bdce44b11b57e2b2b0a2a1a5c226a0440
- 02 L 5d2b2cc531acbda21e738ab68d7d15ad88bea868946e3542d984b0491922c799
- root c0f7095c5741c1b20c05cd9773d35a080e3c61d35eea01002d3269d4442c28a6