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 - REGION VII Award a ₱9.6M contract to ROSTEL CONSTRUCTION AND SUPPLYNational agencies

Transaction hash:

ff02be2d2f12cf5b4690f5eac64eda122fb674183077df7db9f502c10d3cad32

Status:

Included and unchanged

Block:

#667 5,346 blocks after it

Position in block:

Transaction 40 of 41

Award day:

Aug 19, 2009 (17 yrs 2 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VII

To:

ROSTEL CONSTRUCTION AND SUPPLY

Value:

₱9,637,508.75

Project:

09H00034- Repair of Looc and Tutay Bridge

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGION VII

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 #667 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 - REGION VII awarded it to ROSTEL CONSTRUCTION AND SUPPLY on 2009-08-19.
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 ff02be2d2f…3cad32now …
2. Block Merkle root changed
stored d5f71e2dd1…91b87anow …
3. Block #667 hash changed
stored 3ea725f69f…dde4e3now …

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 ff02be2d2f12cf5b4690f5eac64eda122fb674183077df7db9f502c10d3cad32
01 R ff02be2d2f12cf5b4690f5eac64eda122fb674183077df7db9f502c10d3cad32
02 R d35366f9b62269a99d88c8a3f12168a354ffebc504ab0702d1624046d60742a5
03 R 3e2625679d9bb87b4ae999bba6dfee70abad7966883e96abbdf713ce4b9d0bc4
04 L d106f345165749e0976a85add40710648366fba5c39ecb1748c39b1c0befa01a
05 R 2c44a795b68ee67c9696241f6c82d8ca0b6d21fae151cd8e6fbc8e9c75581258
06 L 78453e4d3daacf64756dfd4e83d2ff9544f6ac5451e1b34c7e7276437e0d7999
root d5f71e2dd167b8063c97b8ad8f261ab175cffdd8e38a2621f7338b197b91b87a