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

PHILIPPINE PORTS AUTHORITY - PMO ZAMBOANGA Award a ₱959.3K contract to 3A'S CONSTRUCTION SUPPLYNational agencies

Transaction hash:

da0ff3ebe49b8797c067d7038268b6046fe5ef9fd8595f6fe5c5d8ea4010c096

Status:

Included and unchanged

Block:

#5,985 28 blocks after it

Position in block:

Transaction 39 of 50

Award day:

Oct 9, 2025 (1 yr 1 mo ago)

From:

PHILIPPINE PORTS AUTHORITY - PMO ZAMBOANGA

To:

3A'S CONSTRUCTION SUPPLY

Value:

₱959,344.12

Project:

1-LOT SUPPLY OF LABOR, MATERIALS AND TOOLS/EQUIPME

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

PHILIPPINE PORTS AUTHORITY - PMO ZAMBOANGA

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 #5,985 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)
PHILIPPINE PORTS AUTHORITY - PMO ZAMBOANGA awarded it to 3A'S CONSTRUCTION SUPPLY on 2025-10-09.
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)
No COA finding linked to this contract.
Not published

1 of 8 documents found, 0 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 da0ff3ebe4…10c096now …
2. Block Merkle root changed
stored 365f0075c3…5b2b30now …
3. Block #5985 hash changed
stored 7e1a15af7f…80f7a3now …

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

leaf da0ff3ebe49b8797c067d7038268b6046fe5ef9fd8595f6fe5c5d8ea4010c096
01 L cfc57304a8bb3c1b9453cba1235778b6f4a4a3cbdcab55bec13d72d86b71826d
02 L bdc629a08a8b1717ef62f1c0c072a0a7681a4dcc0521d24922cfc3b74d556caa
03 L 37823d7d1e43e4eedfdb7519b4577e304d3cd131b80b1d71b6fe8f6003d43561
04 R 5437e952ca402fff6166cef493d81fac0d09c4c1eecf0aa438647bea2f459a4b
05 R 1fd5a00ccf9dae3988feec0a7d476b9b7fd8c4e9eefa0bd30699ac944c2b2229
06 L 30ef54716dbb859cfc9dd68f2e3e3724339370dec30e1eff42e0e753b479823f
root 365f0075c3d2914361b4faa44ecf90fa5f5b591f8279048d990604f9db5b2b30