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 - BATAAN 2ND DEO Award a ₱482.0K contract to L.R. DE GUZMAN CONSTRUCTIONNational agencies

Transaction hash:

2855beb5e08a4ced348f3db89c92040250f3a732780124dd0b3f233cfec21e2b

Status:

Included and unchanged

Block:

#1,265 4,748 blocks after it

Position in block:

Transaction 5 of 56

Award day:

Oct 11, 2011 (15 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO

To:

L.R. DE GUZMAN CONSTRUCTION

Value:

₱481,958.96

Project:

Construction of Road Brgy. Banawang, Bagac, Bataan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 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 #1,265 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 - BATAAN 2ND DEO awarded it to L.R. DE GUZMAN CONSTRUCTION on 2011-10-11.
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 2855beb5e0…c21e2bnow …
2. Block Merkle root changed
stored 590b478897…e6a18anow …
3. Block #1265 hash changed
stored 31d71f1210…6d8430now …

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

leaf 2855beb5e08a4ced348f3db89c92040250f3a732780124dd0b3f233cfec21e2b
01 L 233916beffbf678e60b709577c46f828733978af54dfb52e76eecb10582dda4b
02 R 6d7d290b8ca53d666071951dadcb676d4990b81046bf6083feb452c04d1fcd22
03 L 4b0c0d9b2fbbe0b169f9e312b729fa685a360f877e21d5b88ca4bbb990be08d5
04 R debebd962ec9459914c77a6f23416f0e1de30838f12ef936f6eac66937daa3c5
05 R b58f594eec933849a98e28a3658d93725e94214cd6ca299e19af49a0b03acdb8
06 R 476ff37804a37e58558ac069eaac68c6f79f50e778dffd63ce6799f6cce497f6
root 590b47889709aede436b472b3db6598d68c73c1eb0f5b0cbf579a609ede6a18a