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 - SMED Award a ₱1.9M contract to AKH CONSTRUCTION AND TRADING CORPORATIONNational agencies

Transaction hash:

a52d585c1b3c1be1b2cbdfbf37071ff2a893acf7c322685064e2fe2844d47167

Status:

Included and unchanged

Block:

#1,372 4,641 blocks after it

Position in block:

Transaction 30 of 50

Award day:

Feb 7, 2012 (14 yrs 9 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SMED

To:

AKH CONSTRUCTION AND TRADING CORPORATION

Value:

₱1,901,925.64

Project:

INVITATION TO BID-11OH0130-0132

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - SMED

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 #1,372 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 - SMED awarded it to AKH CONSTRUCTION AND TRADING CORPORATION on 2012-02-07.
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 a52d585c1b…d47167now …
2. Block Merkle root changed
stored 288a14ce6b…4f7a3anow …
3. Block #1372 hash changed
stored a4406c004a…4d22a4now …

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

leaf a52d585c1b3c1be1b2cbdfbf37071ff2a893acf7c322685064e2fe2844d47167
01 R b3bc51e2c319735eedecf6a96eb22f7551e1f710c4d6a2ed9ae0b01f953ea9a8
02 L eaa5e29c1ee8be872d5c54796e5d36b0fbc8ef1a7065056c5c761ef1b0dbf078
03 L f3b0bdeaba5ae493bedafd887d273e45064eea834ecd9eca286863bfb182dbd0
04 L 82037cffbf78178cdd55ccd7074f1ae7d536a0053cc351d63c0c56769f13c6f6
05 L 028f1a346147e4fda2bcdc47f507360cedac542c81336fcca546970dcb761a51
06 R 9834a138111fd9ccd17f77dcd495f58e35adb8ffe55894caa51d63779860d91a
root 288a14ce6b57dbece381d6d123e779412dbc03705090f948c9908872314f7a3a