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 - REGION XI Award a ₱81.8M contract to VICENTE T. LAO CONSTRUCTIONNational agencies

Transaction hash:

facda47ced88efef532d5f8d554ca42da9ab57e1e562d61585a4b40ab44e2cda

Status:

Included and unchanged

Block:

#1,412 4,601 blocks after it

Position in block:

Transaction 61 of 63

Award day:

Mar 27, 2012 (14 yrs 7 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XI

To:

VICENTE T. LAO CONSTRUCTION

Value:

₱81,765,237.66

Project:

12LO0007 Construction of Calinan-Toril Road including RROW, Davao City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION XI

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 #1,412 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 - REGION XI awarded it to VICENTE T. LAO CONSTRUCTION on 2012-03-27.
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 facda47ced…4e2cdanow …
2. Block Merkle root changed
stored a280667340…19510bnow …
3. Block #1412 hash changed
stored 21e37e506e…a91cd3now …

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

leaf facda47ced88efef532d5f8d554ca42da9ab57e1e562d61585a4b40ab44e2cda
01 L f85c866b282b99bdf72985d34f6d8c36df94551fca6f36f42ed30e59814baef0
02 R 4c24d8a3f844f8493093d0bf44753d9fae939644166396ecfedafb7e1bec7fd3
03 L 245b0294329690baf9e7a82c694b22439537fdd57e7f0dce7346663eb495ab45
04 L 1a5ba9425626131a11e713b8191d9b73875654aee3a6a1925cef680360be1e6a
05 L 00c692ba94bd33eb959bf9da61b3b48339699da1a1034bfa3f509491cc3dfe27
06 L 60480d4827234cc8d6a8e806ba0727b26a11fc129c3a1036214064eb7cc51ee6
root a28066734036ac94b17e53ec6cc2f16e9030a60663a9ea758370c300ff19510b