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 & HIGHWAYS - DAVAO DEL SUR 2ND SU Award a ₱40.6M contract to GEMMA CONSTRUCTION SUPPLY INC.National agencies

Transaction hash:

fc68cfe422696701f2f50ea3edfc5c523f019346c45d1e9bb68f0db9cb23b94a

Status:

Included and unchanged

Block:

#1,173 4,840 blocks after it

Position in block:

Transaction 49 of 50

Award day:

Jun 22, 2011 (15 yrs 4 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - DAVAO DEL SUR 2ND SU

To:

GEMMA CONSTRUCTION SUPPLY INC.

Value:

₱40,593,802.12

Project:

Road Upgrading CGravel to Paved) Davao Sarangani Coastal Road, Malalag-Malita-JAS, Manguile-Culaman Sect. km 1705+540-1706+380

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - DAVAO DEL SUR 2ND SU

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 #1,173 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 & HIGHWAYS - DAVAO DEL SUR 2ND SU awarded it to GEMMA CONSTRUCTION SUPPLY INC. on 2011-06-22.
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 fc68cfe422…23b94anow …
2. Block Merkle root changed
stored af648adbbf…039be4now …
3. Block #1173 hash changed
stored 83b0c4f829…4fe768now …

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 fc68cfe422696701f2f50ea3edfc5c523f019346c45d1e9bb68f0db9cb23b94a
01 L fb81fd479d0e0e335df87ac9c763fb0b04a5948abe81b591421312a12d1df68a
02 R 05b42d924c5aaf2879af9dc46aa22f787f0d8a6e1e75dc355c03c76051cf715f
03 R 66df3575ceded538fb98750cf560ca5e377cc7ed2d4bf2d9f472429304d83b95
04 R 0bd4678b5d98927b4fbfe2659a57935cebe0fc3eeb6ed873e4f7888c568d6d16
05 L 902763331348183900c0d87b218410b9dc20454904d9174d40a547edd10dc69d
06 L 63266298c501a532672a33db1025d5f1666de3d9b17f2267d6f29ffad62e3470
root af648adbbfc13eb85b6d75ab3f102cd1c0aa1b2823419d9ae99a2a2a88039be4