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 - CAR Award a ₱960.1K contract to OSCAN BUILDERSNational agencies

Transaction hash:

dec89ddacdc6a50925d93eb67400d4dffd3a4d3e270c726223ee305ff1bd003f

Status:

Included and unchanged

Block:

#1,139 4,874 blocks after it

Position in block:

Transaction 35 of 41

Award day:

May 10, 2011 (15 yrs 6 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR

To:

OSCAN BUILDERS

Value:

₱960,078.34

Project:

Construction of Multi-Purpose Building, Barangay Legarda

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - CAR

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 #1,139 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 - CAR awarded it to OSCAN BUILDERS on 2011-05-10.
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 dec89ddacd…bd003fnow …
2. Block Merkle root changed
stored 55acf71595…81c5eenow …
3. Block #1139 hash changed
stored c1acf2fa70…ed1f4dnow …

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

leaf dec89ddacdc6a50925d93eb67400d4dffd3a4d3e270c726223ee305ff1bd003f
01 L dafbac0d544bb899ccb602f61f277f6fa57d443c00dd7ec7597c1c36a5b28f27
02 L 0354c21c795b8c168528dfb809c25bf44410d17b3913aef89240cd341bae429f
03 R 7e9bbe41fd4b4bb03df540c86bf64f1618b918a6c9a8858e59e1e0e60a707f6a
04 R 6f9a0a70e3c458b211947932864199ee13d55ab174b56fa582fd35093c471b46
05 R 2c80558bfa7d2fa20d09d52ad5c0c2eb32feb77c23ecb383e33eb7adcf7f9e8c
06 L ecd0da209faa3eb70dbdf74cfc98750a2d576503ced23737d1daee4a64379952
root 55acf715950a4c80564e303b0c5d318454504f647fae02cb40cba6e3f881c5ee