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 - ILOCOS SUR 1ST DIS Award a ₱3.4M contract to BATCH 81 ENGINEERING & CONSTRUCTIONNational agencies

Transaction hash:

3f97d5a095fbcd6e904f8cd1b9fc1c29bd3f9108491926585cac8306f212f170

Status:

Included and unchanged

Block:

#651 5,362 blocks after it

Position in block:

Transaction 22 of 84

Award day:

Jul 28, 2009 (17 yrs 3 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 1ST DIS

To:

BATCH 81 ENGINEERING & CONSTRUCTION

Value:

₱3,378,703.47

Project:

Cluster E - Completion of Water System, Gabriela Silang Gen. Hospital, vigan City; Const. of 2 Units Deepwell & Inst. of Pump, Brgy. VII, Vigan & Const. of MP Bldg. Brgy. Callaguip, Caoayan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - ILOCOS SUR 1ST DIS

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 #651 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 - ILOCOS SUR 1ST DIS awarded it to BATCH 81 ENGINEERING & CONSTRUCTION on 2009-07-28.
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 3f97d5a095…12f170now …
2. Block Merkle root changed
stored e76f722468…7929d4now …
3. Block #651 hash changed
stored b5b88b0610…dc53bbnow …

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

Merkle proof (7 steps)

How this one record is tied to the block's Merkle root, without needing the other 83 records. Each step hashes the current value together with the sibling shown.

leaf 3f97d5a095fbcd6e904f8cd1b9fc1c29bd3f9108491926585cac8306f212f170
01 R 40a5336681ca05b404ae19d4cc3c5b11993b9d0f350c09ad6ed90d461a5c8f4f
02 L 5a30552eaf2003a9cf1cc0dbe81d958535038217166834a0a51859eefae764de
03 L d33a734e3e7b4b014417b89fd1e0fcd29552dade840382729e28fa2e0ee2e022
04 R 44ac4c3acb9aa6fcf0d66567fcb4b825d27acc59b040d9fc8d75a0145352a4d8
05 L 4bf58660431c76ab6a5a18b53f56ed6571da2876d38954e939a637a313b5d4e3
06 R 05398239dba8540c595c8a819ff77954063aaaa4875a194d9fcd8b9f9e809a87
07 R 219ed99bfc102498ecf491a25fd5dd0ac425fa55e8f45a614e0b49ab04b6e53c
root e76f7224689d16b8eece5a18801e4ac845d187287b0c39bd8aac559e547929d4