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 ₱10.8M contract to M.C. DELA CRUZ ENTERPRISES AND GEN. CONTRACTORCities
Transaction hash:
efb8e792dd97f3903b79f57d7e86ddc6a1cc57503bd08339c481caa3e89cdfeb
Status:
Included and unchanged
Block:
#117 5,896 blocks after it
Position in block:
Transaction 3 of 4
Award day:
Jun 15, 2007 (19 yrs 4 mo ago)
Value:
₱10,764,788.78
Project:
I-2007-043 Construction of 3-Storey 9 Classroom School Building/JRMS, Barangay No. 6
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 #117 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 2007-06-15.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 efb8e792dd…9cdfebnow …
- 2. Block Merkle root changedstored 2253f5355d…69036fnow …
- 3. Block #117 hash changedstored 833dbc4192…d815bcnow …
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 efb8e792dd97f3903b79f57d7e86ddc6a1cc57503bd08339c481caa3e89cdfeb
- 01 L a2ccfbd50481b9a5c57f08476be4eb0291878359b159d3be705577de0208bd46
- 02 L e5a27d1311e9ba0690a373d4796fba2bbf3dedc4f7472e05e8a9e61cae29edea
- root 2253f5355d62e1d2557bdb9fd4a0016529c5dea7f20d7e8ce9fa5d5f9e69036f