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 ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱1.2M contract to A & J CONSOLIDATED ENGINEERINGCities
Transaction hash:
bd6d304d89a877d1ef199d514d8f10e9c316a97e71d5c1d83cce7a0a4a365496
Status:
Included and unchanged
Block:
#408 5,605 blocks after it
Position in block:
Transaction 16 of 20
Award day:
Aug 21, 2008 (18 yrs 2 mo ago)
Value:
₱1,245,355.43
Project:
Rehabilitation / Improvement of Two (2) Storey Six (6) Classroom School Building at Edwin Andrews Air Base 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 #408 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 ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to A & J CONSOLIDATED ENGINEERING on 2008-08-21.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 Zamboanga 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 bd6d304d89…365496now …
- 2. Block Merkle root changedstored 24d5901191…48d075now …
- 3. Block #408 hash changedstored 72478c97c4…b1df1enow …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (5 steps)
How this one record is tied to the block's Merkle root, without needing the other 19 records. Each step hashes the current value together with the sibling shown.
- leaf bd6d304d89a877d1ef199d514d8f10e9c316a97e71d5c1d83cce7a0a4a365496
- 01 R e25490ca13782c5ad4c904c95e0445378f95df607774f43449c233e323e80cf7
- 02 R ac7355fd46113bcd0c8329b852602d009473d2cc4934feebf0e704a62207fb6e
- 03 R afb74f509dd2a825b929cac6696cbebab0ba40422714fb8bf255575b8780e29b
- 04 R e6e013a93fe01700ca8218246e18f35baf1e55f33a4ec8ffcc6ebe04dbf0373f
- 05 L 11765d2e663eb0607f28a5462080f55ad9623493f68447198abf315c16d17f42
- root 24d590119168cd4834f64d9de90db6b04e322a29be763aaacf4851141948d075