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 - BULACAN 2ND DEO Award a ₱485.1K contract to MANUEL A. DELA TORRE JR. BUILDERSNational agencies

Transaction hash:

474b39f7a3d03e4e8d0dc6c0a55cf0e5f14fc2a3f11b36a49d6554ff2cb996a3

Status:

Included and unchanged

Block:

#1,084 4,929 blocks after it

Position in block:

Transaction 12 of 45

Award day:

Feb 28, 2011 (15 yrs 8 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 2ND DEO

To:

MANUEL A. DELA TORRE JR. BUILDERS

Value:

₱485,086.58

Project:

Concreting/Reblocking of Brgy. Road, Villa Ilagan, Muzon, San Jose del Monte City, Bulacan

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BULACAN 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 #1,084 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 - BULACAN 2ND DEO awarded it to MANUEL A. DELA TORRE JR. BUILDERS on 2011-02-28.
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 474b39f7a3…b996a3now …
2. Block Merkle root changed
stored 808f812787…7cd91fnow …
3. Block #1084 hash changed
stored 9847a71841…c092b7now …

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

leaf 474b39f7a3d03e4e8d0dc6c0a55cf0e5f14fc2a3f11b36a49d6554ff2cb996a3
01 R 48504fdc4f8364839efe933d71947e869bcba5fcda04d2e04767ad9cdc01f62f
02 R 07c7a00ebe88a1e735b283f0dbb04fc132529c644e214150627f367b58fe5ef2
03 L b37eb313bf06caf866e3bf08877b6f23ac838ef823ff9b2b6a20c35a67b61371
04 L 42dffad8682454cc025d43988c21169a200732350b50f08b7fb68c00da7a2ee9
05 R d18b3023fdc47edb2eb9dbada865fc6f1dac299a9958c1f68395a22df04a6c44
06 R 211df9649da2cd558e15f9e25d88cf5dd34fd4e2bc6e8c57fe21aa0bffce1a92
root 808f812787ca02f6c7de373200ec56f8a105fe3ab88d716931ddfc33ff7cd91f