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 ₱7.0M contract to ROADTECH CONSTRUCTIONNational agencies

Transaction hash:

58a21ef2ffbed7bc716b96eaa8ade4376d2ca35384850d9faf0f9261fd049c0f

Status:

Included and unchanged

Block:

#1,356 4,657 blocks after it

Position in block:

Transaction 15 of 41

Award day:

Jan 20, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR

To:

ROADTECH CONSTRUCTION

Value:

₱7,022,452.26

Project:

Preventive Maintenance along Quirino Highway (Baguio Bauang Road)

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 #1,356 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 ROADTECH CONSTRUCTION on 2012-01-20.
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 58a21ef2ff…049c0fnow …
2. Block Merkle root changed
stored 189fce5666…f2ff84now …
3. Block #1356 hash changed
stored 7cc75d5ef4…e0e47bnow …

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

leaf 58a21ef2ffbed7bc716b96eaa8ade4376d2ca35384850d9faf0f9261fd049c0f
01 L 5636d38658473a169240e066fe5b5d3acef00c9c962f5bf58a66411f3a93782b
02 L b7c8c8a2be3ca98ac5f30b8b475c669ac29eeedd2d7fb20ec42a2bad564fdfb4
03 L 03789bdffebab4a1ed709d77ae349f207ece969c93e39765f4334a6dd6f43a5f
04 L a0527c27a4baa46e4bca7acc1fc347442d5eb33fe3c27cce91b666ebef338923
05 R 0bf553e739f2c623b59341e7d6911d29be00bc1fe40c6c567bd2967a4ea461b5
06 R 1f28790481ec052b7f1ed4f5ca16e47bbb19deb4edbcc215fe7b6e923e54ba00
root 189fce56662b29048c6cea92f457fb08a27f82c9aa38c1c897d8f99892f2ff84