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 - PAMPANGA SUB-DEO Award a ₱1.6M contract to TONKA CONSTRUCTIONNational agencies

Transaction hash:

a61c0db8d8a98069089daa2e2ad5337819bd1eca348822a3553a05d0df1be435

Status:

Included and unchanged

Block:

#2,252 3,761 blocks after it

Position in block:

Transaction 61 of 117

Award day:

Nov 25, 2014 (11 yrs 11 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PAMPANGA SUB-DEO

To:

TONKA CONSTRUCTION

Value:

₱1,577,049.76

Project:

14CI0028

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - PAMPANGA SUB-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 #2,252 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 - PAMPANGA SUB-DEO awarded it to TONKA CONSTRUCTION on 2014-11-25.
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 a61c0db8d8…1be435now …
2. Block Merkle root changed
stored abe9c6bfc5…68c6benow …
3. Block #2252 hash changed
stored 1e47a25465…6caa7bnow …

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

leaf a61c0db8d8a98069089daa2e2ad5337819bd1eca348822a3553a05d0df1be435
01 L a1d182375f41bbf53c2a9488d209fc481a6df339d021174dae4f4c697725ab2c
02 R c56e0473cae3629d6faba31d4ad2903ce196db5b461a7e115a01b362b0c10e65
03 L 4f8b9616a3c8cabb8fc2fbfd03343587392201aac45b5d292e2fc28f576102f7
04 L f5871b1b24976229eae34dcd5baf8f8a9638a5f739520fc89efa39c34ba6696e
05 L 556b635b79371cfd46893a8ce52eb5bf8a26c95446fce90501afd59f0532b9da
06 L 1610913e340560dec346d3dbc3110aec6005f1d1f44bb5a14b850c0b6992a3b3
07 R f78249c1e87914cf42000cebd46ced0940d2ca5447c3cf2233dd933c95d88f00
root abe9c6bfc57919dc8cc80e7c60cf44ecd82ce2e54bafc98e3cb8c43e6a68c6be