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 - LEYTE 2ND DEO Award a ₱148.3K contract to ZAS CONSTRUCTION AND SUPPLYNational agencies

Transaction hash:

25c871e8e7c2e6d4dcc2bd1007770ca13561e2f3059dd452b342e9ed5a4c237f

Status:

Included and unchanged

Block:

#1,486 4,527 blocks after it

Position in block:

Transaction 13 of 70

Award day:

Jun 21, 2012 (14 yrs 4 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LEYTE 2ND DEO

To:

ZAS CONSTRUCTION AND SUPPLY

Value:

₱148,336.19

Project:

Construction of Multi-Purpose Pavement,Brgy. Bagong Lipunan,Carigara,Leyte

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - LEYTE 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 #1,486 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 - LEYTE 2ND DEO awarded it to ZAS CONSTRUCTION AND SUPPLY on 2012-06-21.
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 25c871e8e7…4c237fnow …
2. Block Merkle root changed
stored 8b0c7902b1…9a3768now …
3. Block #1486 hash changed
stored 7a05dacc1f…85f342now …

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

leaf 25c871e8e7c2e6d4dcc2bd1007770ca13561e2f3059dd452b342e9ed5a4c237f
01 L 24b4aed4bbd588e2733953747d020835ba24cb47f40f67def2d8fb19d1cac381
02 R 20be331b914361030a56a22d5c33c93c45f48f46f1b287f3130126e01126d595
03 L 96824ee493c4252e04e4001a2b19255192cb48e11f4691dd1de5a5abd8371e2a
04 L f8d617c0e0b79784493f92f4e9cc27b66effde2e3b4a99461d6a24a9a023dd9f
05 R 240e53f5ad4b172884c020863da173251157779cc946191b23f1f25a8f741de7
06 R b98f952384f6a948f18c49564c724f177df3c15fbf37c1b42f821924a62f2673
07 R ce0373d5c23c34df8b740a8a3571fbc09636f5200039676b768bbdd1eaf83897
root 8b0c7902b1e411769aaff56594ba853ffd0d5daaf067193c4db8b3a5699a3768