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 - TARLAC 2ND-DEO Award a ₱59.5M contract to B-12 CONSTRUCTION AND TRADING CORPORATIONNational agencies

Transaction hash:

8a3ef5aabcdba407a69e79641ccd6a72e4112a72c459f0c80c8e588caace2f62

Status:

Included and unchanged

Block:

#3,216 2,797 blocks after it

Position in block:

Transaction 132 of 218

Award day:

Oct 12, 2017 (9 yrs 1 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - TARLAC 2ND-DEO

To:

B-12 CONSTRUCTION AND TRADING CORPORATION

Value:

₱59,547,752.11

Project:

17CK0060

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - TARLAC 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 #3,216 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)
DPWH lists the funding source as "Regular Infra - GAA 2017 MFO-3", i.e. the FY2017 GAA. The exact UACS line is not given.
Partly
Open
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 - TARLAC 2ND-DEO awarded it to B-12 CONSTRUCTION AND TRADING CORPORATION on 2017-10-12.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
DPWH contract 17CK0060: Completed, 100% physical progress.
Found
Open
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)
DPWH marks the contract "Completed" (end 2019-01-06). The certificate itself is not published.
Partly
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

2 of 8 documents found, 2 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 8a3ef5aabc…ce2f62now …
2. Block Merkle root changed
stored 5415f185da…94cb30now …
3. Block #3216 hash changed
stored b5af9532a2…a92ec1now …

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

Merkle proof (8 steps)

How this one record is tied to the block's Merkle root, without needing the other 217 records. Each step hashes the current value together with the sibling shown.

leaf 8a3ef5aabcdba407a69e79641ccd6a72e4112a72c459f0c80c8e588caace2f62
01 R 8a57136ca4daf9f8cc7f728080a4b010917b6bd985b82661e148f5d177900996
02 R c8ed22b35b840bfa844c43c6a931a2af78701730f2c6c45a255d198ffb14c9b6
03 L 5a0790bea21bb1c94fbbf7adcfc6b9712b723904f33eb9d68e3e3656d4ec1422
04 R 1ae27607c8d8e6877ecfee1532ae03a19aca37e2dce254eb29e91e5200658cac
05 R 79330577fbb9abab661f4970648dc0b3251fd9c2ffcde9434a0a6a7224e1b1a4
06 R 48d005ec64b00d3f632e20b1bd7f8238181faa6a156c5bb4a67621f14e86dd4c
07 R 9420f5bcccde663b19f24f77a4e4c6fc193a2bb89acec5ace4d4a2b825bc984b
08 L e96dd071c56de510d2697c5338c908f1289627826eed019be1949fcffce982c4
root 5415f185da9a9e05cbee3e454c731bff37a00912d92f7457544c223c0594cb30