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 & HIGHWAYS - DAVAO DEL SUR 1ST DE Award a ₱583.9K contract to DARYNN CONSTRUCTION AND SUPPLYNational agencies

Transaction hash:

a4f0795bfbc8be738e776322d2d190ed79e9f30e1c87249a7473fe22d348f015

Status:

Included and unchanged

Block:

#1,072 4,941 blocks after it

Position in block:

Transaction 8 of 11

Award day:

Feb 15, 2011 (15 yrs 8 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - DAVAO DEL SUR 1ST DE

To:

DARYNN CONSTRUCTION AND SUPPLY

Value:

₱583,917.03

Project:

Construction of Multi-Purpose Building at Brgy. Dawis, Digos City

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - DAVAO DEL SUR 1ST DE

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 #1,072 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 & HIGHWAYS - DAVAO DEL SUR 1ST DE awarded it to DARYNN CONSTRUCTION AND SUPPLY on 2011-02-15.
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 a4f0795bfb…48f015now …
2. Block Merkle root changed
stored 4090ceb8ae…8da515now …
3. Block #1072 hash changed
stored a676f44ab2…15b34dnow …

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

leaf a4f0795bfbc8be738e776322d2d190ed79e9f30e1c87249a7473fe22d348f015
01 R c1eefda587836980547c52078c5ca32fb542f2d5c06270ce8493d49e22d8e96b
02 R 6de1926ca9b76eaab8a89342c25004f9b7635af58a3958826884acbfd4d0256c
03 R e8e04bbc2ef4c14b95e6d73833cd60afdcad86fe2e063ec71ae1998862f11347
04 L a145ceb38c551f91cde7fafcb1b6220899bdad358a8f184df988c1de2541b8de
root 4090ceb8ae81da30e943a753b7f3f8c19ad337591edbf90b9ac627a6bd8da515