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 - QUEZON 3RD ED Award a ₱19.2M contract to MEDITECH TRADE AND DEVELOPMENTNational agencies

Transaction hash:

d4d3fd24d2c8ee4ce47687e5cda6197e89642bf8d4c4d8a4ab21b8bdd24211ce

Status:

Included and unchanged

Block:

#494 5,519 blocks after it

Position in block:

Transaction 11 of 15

Award day:

Dec 16, 2008 (17 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 3RD ED

To:

MEDITECH TRADE AND DEVELOPMENT

Value:

₱19,159,697.52

Project:

Cluster I - Regravelling/Rehabilitation/Improvement of Catanauan-Mulanay National Road, Km. 252+100 – Km. 257+550 and Km. 257+650 – Km. 263+000 with exceptions, Quezon III

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - QUEZON 3RD ED

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 #494 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 - QUEZON 3RD ED awarded it to MEDITECH TRADE AND DEVELOPMENT on 2008-12-16.
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 d4d3fd24d2…4211cenow …
2. Block Merkle root changed
stored 0bd7763f6d…3133d1now …
3. Block #494 hash changed
stored 16e6bae665…f62675now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (4 steps)

How this one record is tied to the block's Merkle root, without needing the other 14 records. Each step hashes the current value together with the sibling shown.

leaf d4d3fd24d2c8ee4ce47687e5cda6197e89642bf8d4c4d8a4ab21b8bdd24211ce
01 L bf9e4f2c4f01a721a6d251f0cc64e273d32cfe47dcbecf8f9e5694413f1f1cbb
02 L 7ad9a200ae3fa2bc9b7d6fd81fc11b358c1fe7ab15007c10b1e5fea0ef6fc446
03 R 4a7d6a58150e84427bbc59222f3eeb6a3c7f06ead9d9420eb4912029cc817034
04 L d6863b8a1cc420725ee88fff98cbaf1ccf28675fa416198bcb08dfec46f32bd0
root 0bd7763f6d46d9bab014f2764d0181726a9ac53bd2e393caaab52508223133d1