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 - PALAWAN 2ND DEO Award a ₱1.2M contract to E.D. TABANGAY CONSTRUCTIONNational agencies

Transaction hash:

08c40b7d17ac7e05fd2eaa26edbac0cb3e486b15a54aac888cd79e4b04ae2ff2

Status:

Included and unchanged

Block:

#975 5,038 blocks after it

Position in block:

Transaction 1 of 29

Award day:

Oct 6, 2010 (16 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - PALAWAN 2ND DEO

To:

E.D. TABANGAY CONSTRUCTION

Value:

₱1,151,272.18

Project:

Package 3-a) Const. of Multi-purpose Bldg. Alfonso XIII, Quezon, b) Rehab. of Multi-purpose Bldg. Alfonso XIII, Quezon, c) Const/Impvt. of Water System Brgy. Campung Ulay, Rizal

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - PALAWAN 2ND 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 #975 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 - PALAWAN 2ND DEO awarded it to E.D. TABANGAY CONSTRUCTION on 2010-10-06.
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 08c40b7d17…ae2ff2now …
2. Block Merkle root changed
stored ed6b043ce6…27d3e7now …
3. Block #975 hash changed
stored 0956f7e223…675901now …

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

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 28 records. Each step hashes the current value together with the sibling shown.

leaf 08c40b7d17ac7e05fd2eaa26edbac0cb3e486b15a54aac888cd79e4b04ae2ff2
01 L 06c49c0d1afe67798b389b38516e252975fba87963cd4ef514deea9705a2bd2c
02 R 00d5c4516cc2d527192ee93c005560ea14b8cc94f1950fb79fc339ae184a99a2
03 R 76e3702057a94f70c532aa96879edb8dcfcaaf270a41cd616948128e08efe643
04 R 6da0d6bd43323b4e28ae8e8cb419f7a33ff8107078d28f183763a4431d0325b9
05 R 97091f6ddb1fc27592cf72b1a4f3aee06312351a2e39d54f6a94ffdb22033e03
root ed6b043ce63440bfd2b1de602789bb3c53fe58802111dffd2f337fc29127d3e7