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

API

Transaction action

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR Award a ₱2.0M contract to NURBEN ENGINEERING AND BUILDING CONTRACTORCities

Transaction hash:

2503fc341bcbe0bd32833164b8ccc56de2790c563f350909da864554bb6ce2e7

Status:

Included and unchanged

Block:

#1,305 4,708 blocks after it

Position in block:

Transaction 9 of 53

Award day:

Nov 25, 2011 (14 yrs 11 mo ago)

From:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

To:

NURBEN ENGINEERING AND BUILDING CONTRACTOR

Value:

₱1,951,362.01

Project:

Improvement of Farm-to-Market Road at Sapa Moro-Lunday, Latuan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

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 #1,305 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR awarded it to NURBEN ENGINEERING AND BUILDING CONTRACTOR on 2011-11-25.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
8. Audit
COA 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
Open

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

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored 2503fc341b…6ce2e7now …
2. Block Merkle root changed
stored 378264d070…411376now …
3. Block #1305 hash changed
stored ba2d0b7dfc…4ca6f8now …

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 52 records. Each step hashes the current value together with the sibling shown.

leaf 2503fc341bcbe0bd32833164b8ccc56de2790c563f350909da864554bb6ce2e7
01 L 24f0dd364d78bb53907c0bbf943007e5672dee209757c580e188ddf4c6c5eb72
02 R 8d58f2951411a39612b2cf42c728942698c70c295d71c54c95160767684568e1
03 R 25568fb84e2d74ad365605b7c4c4ca1aafe724f38a09b81f4b7816de40430968
04 L e5db9ff45c76228bcd972faefce1c5f960214ee9583ec25cfe3ce6a1196533ac
05 R 09dff560cb8414a75ab19a318ca67caa88a2f192fd671d678073472f2afe2db3
06 R 843bfbd0c007aa09e7a59de2341951fcefd12d2a4f5465e4c737fcffef88252a
root 378264d070675deda5ab7e45a90819cb51f4f6c709b3a100a882315405411376