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 ₱836.6K contract to ERICO BRYAN CONSTRUCTIONCities

Transaction hash:

aebd67f4ff8cd8eaec16368697f75ad758c39917c6e490adeff75ae4506963c3

Status:

Included and unchanged

Block:

#1,467 4,546 blocks after it

Position in block:

Transaction 30 of 46

Award day:

May 29, 2012 (14 yrs 5 mo ago)

From:

CITY OF ZAMBOANGA, ZAMBOANGA DEL SUR

To:

ERICO BRYAN CONSTRUCTION

Value:

₱836,579.40

Project:

Rehabilitation/Improvement of Home Economics Building / Rehabilitation/Improvement of School Fence (Cluster)

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 #1,467 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 ERICO BRYAN CONSTRUCTION on 2012-05-29.
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 aebd67f4ff…6963c3now …
2. Block Merkle root changed
stored 908eafc28c…a8f0b6now …
3. Block #1467 hash changed
stored 968f5851ee…a5e072now …

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

leaf aebd67f4ff8cd8eaec16368697f75ad758c39917c6e490adeff75ae4506963c3
01 R aff9dcb14a76acb0cc655bdee6222ea0d9398b2aa628c0360cb835d9991c5b5a
02 L dfa02d182e11c555f68c3bf3ae4affdcaabb8f26cffca98e2e11ae473769bce1
03 L 5164e9b02525f06a77540b840a21f7b76e270018d9ee62983cd8d1c5c531d4d5
04 L ca2c0265d39188a05ef83faf4cf3a9d79248ff9ab941506ad25cdcee019c6f1c
05 L 28e6879a8b3f57d3082b1d1625ebfe25ae5c8a834d95ee391c83df64fb75ae40
06 R 1f38989e755ff580932c37ecf434c51b06159494912ab0bf427f58728f4a3f31
root 908eafc28c2b5d74ea6b6b7ca584abd9c22a99234ed26d54f06f32b50ba8f0b6