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

NATIONAL HOUSING AUTHORITY Award a ₱49.6M contract to WILPER CONSTRUCTION, INCNational agencies

Transaction hash:

f3dd7eb52b23c9f0ef859eec396c9feef660877b3caf033275435e182a621f27

Status:

Included and unchanged

Block:

#1,219 4,794 blocks after it

Position in block:

Transaction 54 of 61

Award day:

Aug 17, 2011 (15 yrs 2 mo ago)

From:

NATIONAL HOUSING AUTHORITY

To:

WILPER CONSTRUCTION, INC

Value:

₱49,621,630.89

Project:

P1-Nayong Kalikasan Housing Project-Phase 1 Brgy. Esteves, Casiguran, Aurora

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

NATIONAL HOUSING AUTHORITY

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 #1,219 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)
NATIONAL HOUSING AUTHORITY awarded it to WILPER CONSTRUCTION, INC on 2011-08-17.
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 f3dd7eb52b…621f27now …
2. Block Merkle root changed
stored c182abe973…f18fa5now …
3. Block #1219 hash changed
stored dd8d271380…bf056enow …

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

leaf f3dd7eb52b23c9f0ef859eec396c9feef660877b3caf033275435e182a621f27
01 R f53ce30a11824f46740fbbc8e2e578a3de8542fdde28b735b913f737d8e337ad
02 L d5a249c269a6e7bbf46d44b71b51062cf0095cea1dc825ceaa242a7bee0628a7
03 L 8dbc0a07db292343a0005629d2e061525243a2ec43592867d1fb1d600475aa56
04 R 9e0de9b404b695fef0a0d07c0164ab7e98dd139291082a9d3e129359b9eafeaa
05 L 8bbbb40ada1adfe102294cdb5d2b6f7d38852e9b10b020b3217dd437f4304428
06 L 64ffdaff2997bcb3a91bf00938cbd88bb49180dc638220e9dccc5ceec22fab23
root c182abe97316efc28ca752f0eaeb75f03f435ac044621a6ff73e211da3f18fa5