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

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR Award a ₱1.4M contract to A.P.B. CONSTRUCTIONNational agencies

Transaction hash:

226da5fa50316a8d94f43bb3311a44ca80c4416ff9ae8fb1182858461d83a806

Status:

Included and unchanged

Block:

#499 5,514 blocks after it

Position in block:

Transaction 12 of 60

Award day:

Dec 23, 2008 (17 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR

To:

A.P.B. CONSTRUCTION

Value:

₱1,401,467.52

Project:

Continuation of Road Opening at Middle Quirino Hill Barangay

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR

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 #499 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)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR awarded it to A.P.B. CONSTRUCTION on 2008-12-23.
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 226da5fa50…83a806now …
2. Block Merkle root changed
stored b6e1f5e03d…84b8c1now …
3. Block #499 hash changed
stored 916d031f26…e0b407now …

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

leaf 226da5fa50316a8d94f43bb3311a44ca80c4416ff9ae8fb1182858461d83a806
01 R 256662e2bfd5940d8ddad7c050616c1f88dcd36cb0a2918a6bb9c376c6631d0d
02 R dc3a4b0473eea7e4b4191d7c8fb7966685c1a640dc7fde2730ed6afc5bc40e39
03 L 1f162bec1af26bfd2dad8d79d5b585db11de740815f23e451142563cdf716e51
04 L e50581c4a2a6abcf116101bfa1ec86e062819b283c0941ba8c7606d3bbc405ca
05 R bfc82a89259fb96e86a53fcc5f6421e042ce2c296180d878343d01aa939ce7d0
06 R c55fd764579947ae360fb888829d2bfa302723c00307b28c50a0b4dcb6242654
root b6e1f5e03dd01f0f66a3b2916b9074eead6ff794045006520532d68ce784b8c1