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 - DAVAO CITY SUB-DEO Award a ₱6.8M contract to JLA CONSTRUCTION & SUPPLIESNational agencies

Transaction hash:

dcaa3c265a772f41e62649f21a903b96054252717e34d5dbd72a89630e2db301

Status:

Included and unchanged

Block:

#1,372 4,641 blocks after it

Position in block:

Transaction 38 of 50

Award day:

Feb 7, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY SUB-DEO

To:

JLA CONSTRUCTION & SUPPLIES

Value:

₱6,757,156.57

Project:

Package 1-a) Const. of Farm to Market Road Brgy. Suawan, Marilog District, D.C. b) Const. of Farm to Market Road Brgy. Marilog Proper, Marilog District, D.C. c) Const. of Farm to Market Road Brg

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - DAVAO CITY SUB-DEO

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 #1,372 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 - DAVAO CITY SUB-DEO awarded it to JLA CONSTRUCTION & SUPPLIES on 2012-02-07.
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 dcaa3c265a…2db301now …
2. Block Merkle root changed
stored 288a14ce6b…4f7a3anow …
3. Block #1372 hash changed
stored a4406c004a…4d22a4now …

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

leaf dcaa3c265a772f41e62649f21a903b96054252717e34d5dbd72a89630e2db301
01 R dcfa70be5d22b87830be74adf648fc45490adc3e925b36a6188a233a86408623
02 L 5cb63ec96c661c4d43f6b6573adefa4d1605dcdea874302f074165fdff4a174f
03 L 9d545c670601d14de024f9d764f2bad9ebf787ddf9891d9f67755153ba97c8ba
04 R a1c308c6a32c1050c3b1598053c78466b11a17aa34e638be48585a02bff7435b
05 R 638e190359d48a98a2f488ef785e59be29588ee84118471c32f4a309c5881db1
06 L 186bba645158bb8a3841343e0afef1645d2da5e0a718432ba4f93f7adf5895a6
root 288a14ce6b57dbece381d6d123e779412dbc03705090f948c9908872314f7a3a