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 ₱2.8M contract to UNA CONSTRUCTION AND SUPPLYCities
Transaction hash:
4c1dfb2deaf3c2fd5866dbf08c8abd7fce7ee2e0af2b812affdf2d53035f4026
Status:
Included and unchanged
Block:
#2,678 3,335 blocks after it
Position in block:
Transaction 71 of 264
Award day:
Mar 2, 2016 (10 yrs 8 mo ago)
Value:
₱2,799,448.41
Project:
Construction of Footbridge / Construction of Catwa
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 #2,678 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 UNA CONSTRUCTION AND SUPPLY on 2016-03-02.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 4c1dfb2dea…5f4026now …
- 2. Block Merkle root changedstored f17ee5b1c2…189b92now …
- 3. Block #2678 hash changedstored 1b1a5d3e9b…7fc749now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (9 steps)
How this one record is tied to the block's Merkle root, without needing the other 263 records. Each step hashes the current value together with the sibling shown.
- leaf 4c1dfb2deaf3c2fd5866dbf08c8abd7fce7ee2e0af2b812affdf2d53035f4026
- 01 L 4be7a070a755c900dc753e7028bfa96ba54670020f5741f662f89234c5ef5881
- 02 L 5c446d1d548b2c9ce18b2a2cc2b200b4a684e802d80b9ae4d3641712113c8df7
- 03 L 2389621335f8398222c515f04ea40e4e0ace7079f15279f98e950dcc6d46069f
- 04 R 66dd23ba915500f10f6cad2bdb6f64330008b190ab71e2edd057de134818b52f
- 05 R 72ff2b3eeafb3fc07a78167134a248a3aae76be6f6ca00de87a660d136043ff7
- 06 R cb4d97f3f6c5fd62ed57275103bc9c3f3890c9d7ff7158ee9cb8b942811330f1
- 07 L 149616a55661186ba12a9d583498e61d1090b1890001f813c53b3c5f2754304f
- 08 R a4fe07b3cb1fcd5140147fb4de9e5ba260217df2e4b266b7534fc94a0762c8a3
- 09 R c5bc0a9f7569ca42d02355a3e37b640c18bc014e9624cd840742f29db15814fb
- root f17ee5b1c27a0f6c97163d027f25b08325aa61b59eb1421d46c752387f189b92