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 VIGAN, ILOCOS SUR Award a ₱19.2M contract to MBB CONSTRUCTIONCities
Transaction hash:
a0e41bf89e27499dc62ee8fcb81aebb930125dc4cb66abc5beefd1f818b3b097
Status:
Included and unchanged
Block:
#2,440 3,573 blocks after it
Position in block:
Transaction 110 of 177
Award day:
Jun 22, 2015 (11 yrs 4 mo ago)
Value:
₱19,188,212.39
Project:
Construction
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 #2,440 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 VIGAN, ILOCOS SUR awarded it to MBB CONSTRUCTION on 2015-06-22.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 Vigan gave a "unmodified" 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 a0e41bf89e…b3b097now …
- 2. Block Merkle root changedstored d175ebdeea…c403c5now …
- 3. Block #2440 hash changedstored 9610f79c3b…9d97aanow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 176 records. Each step hashes the current value together with the sibling shown.
- leaf a0e41bf89e27499dc62ee8fcb81aebb930125dc4cb66abc5beefd1f818b3b097
- 01 R a3bf6224208fb45be8bab480caf0e63c21d1060d9255a210b54770b8caed8635
- 02 L 2833ceba6cbe6ef6fabee39888d9426475fdd07c189a961b09a74355f9eafd5f
- 03 L 21a5f2a9ff764cab5e272e811c151f50295fc20f95428f762522da609ba77d2f
- 04 L dcbeac978a08d3ee2de9dbbe538381248bdabc0d07cd091c5da0fca492710497
- 05 R 34aa52975efa5663e4c4404a5e1d3be06534e2f0016c0e249ded9d8d8460dda4
- 06 L 95843626b2e5fc89a80d1b180ece42072a357f77d8737fa9883e9c08c4d0eea9
- 07 L 38872521ff6a5120170957185ab13fdf019448943c82c4c3d0bb57f515eb04bc
- 08 R efeafb6d51df0ec458f823d15b26ca018ac6f6cf042cdcfb1f792095a4ce19ee
- root d175ebdeea6605f988e41e5e1af62f36f00bfc0fef4211c948d7d3da5ec403c5