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 - SMMSED Award a ₱19.4M contract to DUNGAN CONSTRUCTORS AND TRADING CORPORATIONNational agencies

Transaction hash:

71c8d2a2de53a5bd3d89fd71b47f45e310a7902d0c283a691b5694244371578d

Status:

Included and unchanged

Block:

#1,380 4,633 blocks after it

Position in block:

Transaction 19 of 49

Award day:

Feb 16, 2012 (14 yrs 8 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SMMSED

To:

DUNGAN CONSTRUCTORS AND TRADING CORPORATION

Value:

₱19,432,654.20

Project:

Cluster IV Rehabilitation (Reblocking with Asphalt Overlay) of Daang Maharlika, (S03285LZ, S03286LZ & S03287LZ), Muntinlupa City, Chainage 0+000 to Chainage 0+142, Chainage 0+000 to Chainage 0+245 &

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SMMSED

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 #1,380 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 - SMMSED awarded it to DUNGAN CONSTRUCTORS AND TRADING CORPORATION on 2012-02-16.
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 71c8d2a2de…71578dnow …
2. Block Merkle root changed
stored d0c0fe6a2d…569a1dnow …
3. Block #1380 hash changed
stored 718ada8a3e…eaf2a6now …

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

leaf 71c8d2a2de53a5bd3d89fd71b47f45e310a7902d0c283a691b5694244371578d
01 L 66c0f80408b15c7e6aa0c2d20f9235a7544ac7c35f7b8e60faf74d5ed3190dbf
02 L 778e39302ad046d12b942df78114e85e95043f1fcaffa98e6b0191126d56c4bf
03 R 3dac42bc63d653b7ff7662a45d1596072a5873a4e749506e8725fae803f92c1e
04 R e59f848484197774d3a9795294cae4fadbdcd732c1e5e94368bfc0bd90db2ecf
05 L 6e602518e1e78f944faeb3330a0195b74f0c839c719df0e3b4b5f2467308c79a
06 R 6c2906ae120554f51b273b191faa391d21e6b3a210224a4af8ede9403352edf1
root d0c0fe6a2d73fcac3fe3fb163605f1147242d9b6162917e4b456d8e0ff569a1d