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 - ALBAY 2ND DEO Award a ₱18.9M contract to ELKANKONSTRAK DEVELOPMENT CORPORATIONNational agencies

Transaction hash:

02afa3feb24510064d8d893dac62f141928d4d75a0627a320f885213c5d3c6bc

Status:

Included and unchanged

Block:

#1,071 4,942 blocks after it

Position in block:

Transaction 1 of 18

Award day:

Feb 14, 2011 (15 yrs 8 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - ALBAY 2ND DEO

To:

ELKANKONSTRAK DEVELOPMENT CORPORATION

Value:

₱18,913,840.94

Project:

Cluster I-2011 Const./Repair/Rehab. of Various Infrastructure including Local Project in the 3rd District of Albay

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - ALBAY 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 #1,071 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 - ALBAY 2ND DEO awarded it to ELKANKONSTRAK DEVELOPMENT CORPORATION on 2011-02-14.
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 02afa3feb2…d3c6bcnow …
2. Block Merkle root changed
stored 8b51af31bc…65af08now …
3. Block #1071 hash changed
stored da6b90785d…1349a6now …

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

Merkle proof (5 steps)

How this one record is tied to the block's Merkle root, without needing the other 17 records. Each step hashes the current value together with the sibling shown.

leaf 02afa3feb24510064d8d893dac62f141928d4d75a0627a320f885213c5d3c6bc
01 L 026072dc75dd26a919bdd1f61a134b78665c8bdb04a0fa34fa0f18a7ec381117
02 R 2bd7056651b2c17489c5b5e5400c670373e5a2732adbf4a1013af9b2cbabee48
03 R c939cb8f5dabb001edbd0a27a990208aebcbb3ff9e74f51accfdda5c68523db2
04 R 426a99e99a997f8191def9e8ce26719954e3c75a072e9e12385fe69d503e68a3
05 R 755da287e6f04254c2e1c57587e225a422730e607d4a1ebc1d94b145bb19c100
root 8b51af31bc4d5d3e03b6bf2c57100499b64a136d71df7946efe85df7fa65af08