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 ₱199.1K contract to MAGNA RICH TRADING & CONSTRUCTIONCities
Transaction hash:
d9aee8ef5f8ded1a2481b9703fb2163f7ac45b3f5a1435e510b7ff3712fd20eb
Status:
Included and unchanged
Block:
#23 5,990 blocks after it
Position in block:
Transaction 27 of 37
Award day:
Dec 19, 2006 (19 yrs 10 mo ago)
Value:
₱199,076.90
Project:
Construction of 4 units Comfort Room/Mabato ES, Barangay Mabato
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 #23 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 MAGNA RICH TRADING & CONSTRUCTION on 2006-12-19.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 d9aee8ef5f…fd20ebnow …
- 2. Block Merkle root changedstored e2733b6d41…7e24c3now …
- 3. Block #23 hash changedstored 66f96f35f7…977ac9now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (6 steps)
How this one record is tied to the block's Merkle root, without needing the other 36 records. Each step hashes the current value together with the sibling shown.
- leaf d9aee8ef5f8ded1a2481b9703fb2163f7ac45b3f5a1435e510b7ff3712fd20eb
- 01 L d29412a6428f9399156d768b851677b3931890c2bafa33f51523d99e7295d58e
- 02 L d974b78720ff3ea79ec9a79b5e1b5acf98576033e0cadeb5f9b042cb447c7f25
- 03 R bdd21211d14094e1490ad9eeb9a337c792e5047bf9fa64a82ce400c14eca3712
- 04 L f4db00997030fe3ccd4b9cf0fb4085317744594667d240a39d70b1fadfea30e1
- 05 L be6d3c2eb10311c766e13d8484f373fd000ccb0ad57f2f61e88184bdce82fc1c
- 06 R 6a3475e8b2628d0ca78ff7cd46eb0872a58ccc2928cec440d5c432e6a4442181
- root e2733b6d41d2c95b5ade2bf424b638a43f44c55b8ce1bc96ba1a7b7ef97e24c3