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 ₱5.8M contract to MAGNA RICH TRADING & CONSTRUCTIONCities
Transaction hash:
db272bfd75da8ac09a08fd8b79f4c5e286d225aaf7363fe8886663cae97edbaa
Status:
Included and unchanged
Block:
#15 5,998 blocks after it
Position in block:
Transaction 6 of 7
Award day:
Nov 29, 2006 (19 yrs 11 mo ago)
Value:
₱5,819,834.68
Project:
Construction of 2-Storey 4 Classroom School Building
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 #15 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 2006-11-29.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 db272bfd75…7edbaanow …
- 2. Block Merkle root changedstored 4189e4dcb6…78fc40now …
- 3. Block #15 hash changedstored 33b299d061…ff3a8bnow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (3 steps)
How this one record is tied to the block's Merkle root, without needing the other 6 records. Each step hashes the current value together with the sibling shown.
- leaf db272bfd75da8ac09a08fd8b79f4c5e286d225aaf7363fe8886663cae97edbaa
- 01 R db272bfd75da8ac09a08fd8b79f4c5e286d225aaf7363fe8886663cae97edbaa
- 02 L bbe4dc6e85f21a3bdde84b0ff185c061b0642090e3ee8249c8c278616085f181
- 03 L b86b97b9fd070a77dc07ce765e6ae831add9332e06c4e88c31bd31a80dc25dee
- root 4189e4dcb67198a33c9a842f2c6bec455ad5daa219e1b7d0dbbd70740c78fc40