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 ₱11.9M contract to DUAMON CONSTRUCTION & SUPPLYNational agencies

Transaction hash:

48b49bf753263c2bf312da9e9a07290b0be916fce252954b2c0d53ec599674ef

Status:

Included and unchanged

Block:

#3,032 2,981 blocks after it

Position in block:

Transaction 90 of 316

Award day:

Mar 30, 2017 (9 yrs 7 mo ago)

From:

NATIONAL HOUSING AUTHORITY

To:

DUAMON CONSTRUCTION & SUPPLY

Value:

₱11,921,617.80

Project:

Construction of 100 Core Housing units, Sorsogon R

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 #3,032 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 DUAMON CONSTRUCTION & SUPPLY on 2017-03-30.
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 48b49bf753…9674efnow …
2. Block Merkle root changed
stored d376d2db8e…a51386now …
3. Block #3032 hash changed
stored 3dd5f547f6…e678acnow …

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

Merkle proof (9 steps)

How this one record is tied to the block's Merkle root, without needing the other 315 records. Each step hashes the current value together with the sibling shown.

leaf 48b49bf753263c2bf312da9e9a07290b0be916fce252954b2c0d53ec599674ef
01 R 4959658ce6f8276479e4c13674e482579520399f5202986d6be314040c489214
02 L 9cfb80af57668f69aacf2f33fdaf9ca7bdd20bc370010d3b10c307d623d2f3ca
03 R 25da1e2ea3ed6fb2654a02388396449ef3510b7c99d03a442b4b0dac10c0bd82
04 L 049e266f620eb344a5d923472b38ed8395a696177ea7e9798e5f7a12a4c36334
05 L ac655eb4ea4498433f04d7b051957e038454f15825dac9dcb9ebeb2eb9cd2466
06 R 7df3c2338cb928d12d3a8916ef9b89a69ba501f83c24bf911ee1785fa180e40d
07 L ee946c898ad6c2b16850a41355d13d44a72c578ef538597e4ed1c9a26d979a43
08 R b9b2ca7057995b46e2bec12f53744d32fafae41a8d97989283e867a5081db166
09 R 1db9678931d60b4d7d2ebc0de34207ba4d6461b03182dfae0ef8ee1d210dad2a
root d376d2db8eeb113ae05957ff57aa253954600ed0d8b4e3bb7f4f2588cba51386